Winload.efi

Please upload "winload.efi" for L855-S5366. This is loacated in C:/windows/system32. My laptop after booting says, computer needs to be repaired and a file ie C:/windows/system32/winload.efi is missing or corrupted. I dont have recovery media and not in position to get it from Toshiba.
Thanks in advance

Tried to look for that file with the link given by you but wont find... please guide how to download that file.
Forget about that file. It's a red herring.
my laptop boots with Toshiba logo and after that it gives that error page.
So Windows does not start? You neglected to tell us that.
This all happened when I tried to partition my C drive with Easeus partition master. ... Am newbie
Now I'm beginning to understand. You fooled around with a partition manager - in spite of the fact that you're a newbie.
Your best bet is to restore the hard disk to its original out-of-the-box contents using Toshiba recovery media. See the section Recovering the Internal Storage Drive, which begins on p. 54 of the User's Guide.
Satellite/Satellite Pro C800/L800/S800 Series User’s Guide
I take it you did not create recovery media. Why do you say you are not in position to obtain it from Toshiba?
-Jerry

Similar Messages

Windows 8.1 Freezing and Refresh Failed - winload.efi error 0xc0000001

Hey, everybody. I'm new to these forums so I'm sorry if I do anything wrong, and sorry for the long post.
I own a three-month-old Toshiba Satellite S50D-A that came with Windows 8 installed and ran perfectly. I was eventually asked to upgrade to Windows 8.1, and assuming it was a minor update, I immediately accepted.
Unfortunately, ever since "upgrading" to Windows 8.1, my computer has suffered some severe performance issues. Browsing the internet has become slower, games run poorly, and worst of all, my computer will randomly freeze constantly. I am still
able to move the mouse around but clicking does nothing or sometimes has a very delayed response. The computer usually resumes after a few minutes, but sometimes it suddenly resets on its own. This has become increasingly frustrating, especially when I am
in class (I am a university student) and trying to take notes when the computer freezes and sometimes resets, losing my notes.
Researching on the internet has revealed that this is not an uncommon problem with Windows 8.1, but the solutions presented online have failed to solve my problems. I've upgraded every driver on my computer which I thought was the issue but the problem has
persisted.
A couple of days ago, I left my computer for a few minutes and returned to find it had shut down and refused to turn back on. I was eventually able to restart the computer after contacting Toshiba and learning there was a reset hole I could poke a pin into,
but that episode convinced me to give up on fixing the issue and to simply return my computer to factory defaults.
If anybody has any solutions to the freeezing issue and other problems with Windows 8.1, that would be preferable, but otherwise, this brings me to my new problem. I stumbled upon Windows Refresh, the ability to return to default system settings without
losing my files. This sounded perfect as I am willing to reinstall all of my programs if it means having a properly functioning computer again. However, upon attempting the Refresh, I was presented with a blue screen that read:
RECOVERY
The Application or operating system couldn't be loaded because a required file is missing or contains errors.
File: \windows\system32\winload.efi
Error code: 0x0000001
It proceeds to tell me that I can use recovery tools to repair my computer, which brings me to my next trouble... I did not create recovery media when I still had Windows 8. I plan to go out and buy a 16gb usb stick tomorrow and create one but I'm not sure
if the Windows 8.1 recovery media will work or not.
Long story short, my computer has suffered constant freezing since updating to Windows 8.1, and my attempts to use the Refresh feature have failed due to error code 0x0000001. If anybody has a solution to any of these problems, your help would be extremely
appreciated. As a full-time student, these technology troubles have become extremely infuriating.
Thank you!

Please provide us with your Event Viewer administrative logs by following these steps:
Click Start Menu
Type eventvwr into Search programs and files (do not hit enter)
Right click eventvwr.exe and click Run as administrator
Expand Custom Views
Click Administrative Events
Right click Administrative Events
Save all Events in Custom View As...
Save them in a folder where you will remember which folder and save as Errors.evtx
Go to where you saved Errors.evtx
Right click Errors.evtx -> send to -> compressed (zipped) folder
Upload the .zip file to skydrive or a file sharing service and put a link to it in your next post
If you have updated to win 8.1 and you get the error message "the system cannot find the file specified" it is a known problem. The
work around is to edit the registry. If you are not comfortable doing this DONT. If you are, backup the key before you do
Press Win+"R" and input regedit
Navigate to:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\WINEVT\Channels. Delete "Microsoft-Windows-DxpTaskRingtone/Analytic"
Wanikiya and Dyami--Team Zigzag

Error code: 0xc0000001 file: \windows\system32\winload.efi missing or contains errors

I have a new 2 month old(Aug 2014) hp eliteone 800 all in one computer running win 8.1 64bit. i have two 1 tb hard drives raid configuration. left computer on for an afternoon and when I came back it was off mysteriously. tried to turn on and it
attempted to repair and was never able to repair. hp sent a new windows 8 software to install, they said os was corrupt. installed three times now i get error code: 0xc0000001 file: \windows\system32\winload.efi missing or contains errors. hp said installation
disc probably corrupt and sent me another. installed twice with same result, error code: 0xc0000001 file: \windows\system32\winload.efi missing or contains errors. This began after the computer was just one month old and after i had placed 300-400
gb of my personal data from other computers on it. I need all of these files so can't just recover/delete all of the files on the computer, although i have read that that may be my only solution? If i do recover will the files still be on the second hard drive??
can you help with this problem?? thanks.

Hi Richard,
Did you try to repair or reinstall the system when you insert the new media?
Have you tried to carry out a system recovery, which will restore your system back to factory defaults and how was the result?
In addition, I suggest you use the new installation media to do a clean install(full format the old system).
How to perform a clean installation of Windows
http://windows.microsoft.com/en-IN/windows-8/clean-install
Note: If you have important personal data, remember to insert your drive into another computer to backup your personal data before you do any operation.
Karen Hu
TechNet Community Support

Flex 15D errored within an hour of purchase with winload.efi

I unboxed my new Flex 15D an hour ago, very pleased with it, until it rebooted to install windows 8.1 updates.
When it rebooted I ended up at a blue screen saying that the file \windows\system32\winload.efi is missing.
Enter just loops back to the error, F8 flashes the screen and takes me back to the error.
Can anyone help?
Solved!
Go to Solution.

I would do a few things.
1. Go into the bios and enable legacy mode + disable safe boot
2. If that fails, use a windows 8.1 DVD image to "repair startup" (part of the advance options, before installation proceeds).
3. If that fails, then use the OKR system and try to update to Windows 8.1 again, before you load your personal files/programs. Since you got 1 hour run-time on it, I doubt you have much on the laptop. Hence, this might be your best and quickest option.
4. Or you can wait for a Lenovo Support Specialist to respond. lmao ,,,, They might have something better than the above lol.

Try to reset to factory settings/missing file"windows\system32\winload.efi

I have Toshiba Serial #XXXXXXXXX, model P75-A7200
Bought it brandnew at best buy almost a year ago. I did not make any recovery disc's or flash drive.
It is getting slow and someother minor issues while on internet, so I want to do a Full Reset to facory settings. I have tried the Refresh option and the Reset option. Both come back with error message ;oxc0000001, missing file: Windows\system32\winload.efi
So how do I fix this since I didnt make a recovery or start up discs? I can reboot the computer just fine, I just cant do a computer reset.
I am running Windows 8.1, came installed with windows 8, I upgrade to 8.1 shortly after I bought it.
[Moderator edit to remove serial number.]

Satellite P75-A7200
I didnt make a recovery or start up discs?
Obtain them from Toshiba. Scroll down to Get Recovery Media here. See the instructions in the section Restoring from recovery media, which begins on p. 60 of the User's Guide.
Satellite/Satellite Pro P70/P50/P40-A Series User’s Guide
Be sure to follow these instructions when you upgrade to Windows 8.1.
How to Update from Windows 8 to Windows 8.1
-Jerry

Winload.efi error 0xc0000001

OLA A TODOS
EL PROBLEMA ES QUE DESDE QUE ACTUALIZE MI WINDOWS 8 A WINDOWS 8.1 SE ME HIZO MAS LENTA LA COMPUTADORA, PROGRAMAS CORREN LENTO Y LA NAVEGACION EN EL INTERNET TAMBIEN ES LENTISIMA, COMPRE LA COMPUTADORA HACE COMO 2 MESES.
AHORA TRATO DE RESTAURARLA A SUS VALORES DE FABRICA PERO ME SALE UN ERROR QUE DICE
SU COMPUTADORA NECESITA SER REPARADA
ARCHIVO NO ENCONTRADO O DAÑADO
C/WINDOWS/SISTEM32/winload.efi
error 0xc0000001
Y NO PUEDO RESTAURARLA AYUDA POR FAVOR NO SE QUE HACER
TALVEZ SI ALGUIEN TENGA SU COMPUTADORA EN PERFECTO ESTADO Y PUEDA SUBIR ESTE ARCHIVO PARA REEMPLAZARLO
MI COMPU ES UNA TOSHIBA SATELLITE C45A NECESITO UNA SOLUCION AL PROBLEMA
Y NO TENGO UN DISCO EXTERNO DE RESTAURACION YA QUE LA COMPRE EN PANAMA Y ME LA TRAJO UNA AMIGA, NO SE QUE HACER AYUDA POR FAVOR

Please select your language from the drop down list at the top of the page to post your question in the language of your choice. The forum you posted in is for English only. If you do not find the desired language, support options for additional
international locations can be found by following the link below:
Seleccione su idioma de la lista desplegable en la parte superior de la página para enviar su pregunta en el idioma de su elección. El foro que posteaste es sólo para Inglés. Si no encuentra el idioma que desee, opciones de soporte para las ubicaciones
internacionales adicionales se pueden encontrar siguiendo el siguiente enlace:
http://support.microsoft.com/common/international.aspx
Advice offered in good faith. It is your decision to implement same. Wanikiya and Dyami - Team ZigZag

Native Boot VHD Winload.efi Issue

I get a "corrupt or missing" winload.efi error (0xc000000e) when the machine first boots. I then hit the ESC key, select F9 (boot device options), then select either my Windows 10TP or my VHD (also W10TP). It then boots.
I have an HP Pavilion 15, with AMD 10, 12 GB RAM, VHD is in a directory on a 2nd drive.
BIOS settings are set to UEFI enabled, SecureBoot disabled. (I've swapped this back and forth and still the same.)
I've tried setting the VHD as default, nothing.
I've tried to fix it using suggestions from other OS threads, including repairing the boot and it finds nothing.

Hi IslandCoder,
The way I used is almost same with you, see picture above, I create the VHD file (about 20G size), and use command to apply the wim file to VHD:
DISM/Apply-Image /ImageFile:<image_file> /index<index_number> /ApplyDir:<image_path> command.
When it is finished, use bcdboot command to create a boot entry for this VHD device.
Use the BCDboot tool to copy common system partition files and to initialize boot configuration data:
C:\Windows\System32\bcdboot C:\Windows
If the key steps are OK, there should be no other problem. I have tested about three times with Windows 10 Technical Preview.
Alex Zhao
TechNet Community Support

Z500 One Key Recovery Error Missing winload.efi

Hi, I want to format my laptop or make a recovery using one key recovery..after setup on desktop..it load recovery and start the recovery..during setup..it show error and cannot proceed the setup.Later it show error winload.efi missing error code 0xc000000f window couldn't load It give 3 suggestion either try again by press enterF8 for startup setting and esc for UEFI firmware setting All this cannot use except esc and it bring to bios..How can I fix the error and make a recovery again I need to use this laptop urgent

You need to create a recovery disk to fix the boot files. Google how. You would most likely need an empty usb and another windows 8 computer.

Winload.efi missing

hi
I have got a new lenovo G50-70 with an original windows 8.1 (single lang).
I made a backup from the windows with Lenovo user backup & recovery then chane the size of C:\ drive with Easeus partition after getting restarted , i have got a message winload.efi is missing or damaged (0xc0000225)
I would appreciate and instant reply and help from you
thanks

Winload.exe is missing or corrupt - Recover CD does not boot - Problem SOLVED!
More help on this issue:
http://social.technet.microsoft.com/Forums/windows/en-US/7cd22ca7-2ec9-40f6-bf01-c7626ecc8c02/0xc0000225-file-windowssystem32winloadefi-is-either-corrupted-or-missing
S.Sengupta, Windows Entertainment and Connected Home MVP

Windows 8.1 - \windows\system32\winload.efi missing or corrupt Code: 0cx000000f

I have had my Lenovo IdeaPad U330 Touch 4th Gen i5 for 5 months now, and last week, lots of blue screen errors started appearing. Here is a list of the BSOD Errors I had DURING ONE DAY:
BAD_POOL_HEADER
PAGE_FAULT_IN_NON_PAGED_AREA
MEMORY_MANAGEMENT
KERNEL_SECURITY_CHECK_FAILURE
PFN_FILE_CORRUPT
BAD_POOL CALLER
ATTEMPTED_EXECUTE_OF_NOEXECUTE_MEMORY
Anyway, It worked fine this morning, but after I came back from lunch, It told me that my computer needed to be repaired, because the file \windows\system32\winload.efi was either missing or contained errors. I have 3 options on this screen which are:
"Press Enter to try again" - which does nothing
"Press F8 for Startup Settings" - which does nothing
"Press Esc for UEFI Firmware Settings" - which works and takes me to the "InsydeH2O Setup Utility"
What do I do to get my laptop working again??

Hi,
How about your problem now? According to your description, the only way except reinstall OS to fix your problem was create a system repair disc, USB drive is OK. Then connect to your computer to fix this problem.
Roger Lu
TechNet Community Support

Error: 0xc0000001 windows/system32/winload.efi missing or ..

i have msi ge60 0nd series leptop and recently i want to recovery my system and go back factory settings but end up this error and i can' t recover. Need your help.

The error code: 0xc0000001 indicates that there might be some issues with the booting device or some booting files are corrupted. It might also happen if some problem happens with the boot sector of the computer. I would suggest you to un-plug all external
devices, except the keyboard and mouse, then try to boot the computer.
If issue persists, I would suggest you to perform Automatic repair and check if it helps.
1. Hold power button to shut down the system.
2. Press power button to start system.
3. Repeat the steps multiple times (twice or thrice until you see the recovery page).
4. After that, select "advanced repair option" in Recovery page
5. Select "Troubleshoot" in Choose an option page.
6. Select "Advanced options" in Troubleshoot page.
7. Now click on “Automatic Repair” and follow the on-screen instructions.

Unable to start guest OS in Hyper-V on Server 2012 R2

I get the following error trying to start any guest OS in Hyper-V Manager:
"An error occurred while attempting to start the selected virtual machine(s)::
'TestVM' failed to start.
Virtual Machine 'TestVM' could not be started because the hypervisor is not running.
'TestVM' failed to start. (Virtual machine ID xxxxxxxxxxxx)
Virtual machine 'TestVM' could not be started because the hypervisor is not running (Virtual machine ID xxxxxxxxxxxx).
The following actions may help you resolve the problem:
1) Verify that the processor of the physical computer has a supported version of hardware-assisted virtualization.
2) Verify that hardware-assisted virtualization and hardware-assisted data execution protection are enabled in the BIOS of the physical computer. (If you edit the BIOS to enable either setting, you must turn off the power to the physical computer and then
turn it back on. Resetting the physical computer is not sufficient.)
2) If you have made changes to the Boot Configuration Data store, review these changes to ensure that the hypervisor is configured to launch automatically."
Host (Physical) Hardware:
- Supermicro X9SRL-F, BIOS Rev 3.0a (current) with Intel Virtualization enabled and Execute Disable Bit enabled
supermicro.com/products/motherboard/Xeon/C600/X9SRL-F.cfm
- Intel Xeon E5-2620 CPU
http://ark.intel.com/products/64594/Intel-Xeon-Processor-E5-2620-15M-Cache-2_00-GHz-7_20-GTs-Intel-QPI
- 96GB ECC DDR3 RAM
Host Software:
- Server 2012 R2 DataCentre with update 1 (clean install)
- Hyper-V role installed
All hardware supports virtualization and was previously running VMWare VSphere 5.5 without problem.
The BIOS settings for Intel Virtualization and Execute Disable Bit are both enabled.
The server has been physically shutdown and powered off numerous times, but still doesn't work.
I've read Ben Armstrong's notes on setting the Hypervisor Launch type in BCDEdit
Here's the current Boot Configuration Data
Windows Boot Manager
identifier {bootmgr}
device partition=\Device\HarddiskVolume8
path \EFI\MICROSOFT\BOOT\BOOTMGFW.EFI
description Windows Boot Manager
locale en-US
inherit {globalsettings}
bootshutdowndisabled Yes
default {current}
resumeobject {06bff081-9477-11e4-ab74-9faf6fe9d444}
displayorder {current}
toolsdisplayorder {memdiag}
timeout 30
Windows Boot Loader
identifier {current}
device partition=C:
path \Windows\system32\winload.efi
description Windows Server 2012 R2
locale en-US
inherit {bootloadersettings}
recoverysequence {06bff083-9477-11e4-ab74-9faf6fe9d444}
recoveryenabled Yes
isolatedcontext Yes
allowedinmemorysettings 0x15000075
osdevice partition=C:
systemroot \Windows
resumeobject {06bff081-9477-11e4-ab74-9faf6fe9d444}
nx OptOut
hypervisorlaunchtype Auto
Here's my System Info:
OS Name Microsoft Windows Server 2012 R2 Datacenter
Version 6.3.9600 Build 9600
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Name HYPER1
System Manufacturer Supermicro
System Model X9SRL-F
System Type x64-based PC
System SKU To be filled by O.E.M.
Processor Intel(R) Xeon(R) CPU E5-2620 0 @ 2.00GHz, 2001 Mhz, 6 Core(s), 12 Logical Processor(s)
BIOS Version/Date American Megatrends Inc. 3.0a, 5/12/2013
SMBIOS Version 2.7
Embedded Controller Version 255.255
BIOS Mode UEFI
BaseBoard Manufacturer Supermicro
BaseBoard Model Not Available
BaseBoard Name Base Board
Platform Role Workstation
Secure Boot State Unsupported
PCR7 Configuration Not Available
Windows Directory C:\Windows
System Directory C:\Windows\system32
Boot Device \Device\HarddiskVolume8
Locale Australia
Hardware Abstraction Layer Version = "6.3.9600.17196"
User Name Not Available
Time Zone AUS Eastern Daylight Time
Installed Physical Memory (RAM) 96.0 GB
Total Physical Memory 96.0 GB
Available Physical Memory 93.0 GB
Total Virtual Memory 110 GB
Available Virtual Memory 107 GB
Page File Space 14.0 GB
Page File C:\pagefile.sys
Hyper-V - VM Monitor Mode Extensions
Yes
Hyper-V - Second Level Address Translation Extensions
Yes
Hyper-V - Virtualization Enabled in Firmware
Yes
Hyper-V - Data Execution Protection
Yes
I do have the following two errors in the Hyper-V server role event log that occur at system startup, but can't find any info on it:
Log Name: System
Source: Microsoft-Windows-Hyper-V-Hypervisor
Date: 12/01/2015 3:35:37 PM
Event ID: 63
Task Category: None
Level: Error
Keywords:
User: SYSTEM
Computer: HYPER1
Description:
Hypervisor launch failed; The hypervisor was unable to initialize successfully (phase 0x5), and was not started. This initialization failure may be the result of a platform configuration or firmware issue. Contact your system vendor for more
information or updated firmware.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-Hyper-V-Hypervisor" Guid="{52FC89F8-995E-434C-A91E-199986449890}" />
<EventID>63</EventID>
<Version>0</Version>
<Level>2</Level>
<Task>0</Task>
<Opcode>0</Opcode>
<Keywords>0x8000000000000000</Keywords>
<TimeCreated SystemTime="2015-01-12T04:35:37.814579300Z" />
<EventRecordID>3955</EventRecordID>
<Correlation />
<Execution ProcessID="4" ThreadID="8" />
<Channel>System</Channel>
<Computer>HYPER1</Computer>
<Security UserID="S-1-5-18" />
</System>
<EventData>
<Data Name="Phase">0x5</Data>
</EventData>
</Event>
Log Name: Microsoft-Windows-Hyper-V-VMMS-Admin
Source: Microsoft-Windows-Hyper-V-VMMS
Date: 13/01/2015 11:21:23 AM
Event ID: 15350
Task Category: None
Level: Error
Keywords:
User: SYSTEM
Computer: HYPER1
Description:
The virtualization infrastructure driver (VID) is not running.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-Hyper-V-VMMS" Guid="{6066F867-7CA1-4418-85FD-36E3F9C0600C}" />
<EventID>15350</EventID>
<Version>0</Version>
<Level>2</Level>
<Task>0</Task>
<Opcode>0</Opcode>
<Keywords>0x8000000000000000</Keywords>
<TimeCreated SystemTime="2015-01-13T00:21:23.250980100Z" />
<EventRecordID>181</EventRecordID>
<Correlation />
<Execution ProcessID="1512" ThreadID="1576" />
<Channel>Microsoft-Windows-Hyper-V-VMMS-Admin</Channel>
<Computer>HYPER1</Computer>
<Security UserID="S-1-5-18" />
</System>
<UserData>
<VmlEventLog xmlns:auto-ns2="http://schemas.microsoft.com/win/2004/08/events" xmlns="http://www.microsoft.com/Windows/Virtualization/Events">
</VmlEventLog>
</UserData>
</Event>
I've also read a number of other threads that haven't assisted including:
- https://social.technet.microsoft.com/Forums/en-US/396c882f-2cc8-4bc8-804d-eec75c0b8066/virtual-machine-could-not-be-started-because-the-hypervisor-is-not-running
- https://social.technet.microsoft.com/Forums/windowsserver/en-US/85b323a8-9233-49b9-bc38-e28e7a4222c6/server-2008-hypervisor
There is no event ID 3112 in the event log, so this MS KB article (2490458) is not relevant
Following pics attached show BIOS settings for CPU and Virtualization / Execute Bit Disable settings:

I recently ran into this. The person had made a modification to the System Properties of the Windows operating system.
System Properties > Advanced > Performance > Settings ...
On the Performance Options window, select the Data Execution Prevention tab. Ensure Turn on DEP for all programs and services except those I select is the option selected. He had the other option selected. The only way to get it to get it working
was to change the setting, uninstall Hyper-V, reboot, install Hyper-V, reboot.
. : | : . : | : . tim

Don't know where to put this, but cannot go back to windows 8. Help please?

Hello,
Please forgive me, I do not know what forum to ask this question in. I downloaded the free windows 8.1 update a while back, and have decided that I do not like it. So I tried "Refresh your PC settings without afflicting your files". It restarted
itself, as it should, but when it boots back up, it gives me error 0xc0000001, saying I am missing \windows\system32\winload.efi, or something along those lines. The thing is, I looked into that folder and it was there. How can I fix this?
Thanks

They'll help you over here.
Windows 8.1 on Microsoft Answers
Regards, Dave Patrick ....
Microsoft Certified Professional
Microsoft MVP [Windows]
Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

Satellite c855d-s5103 recovery please

Good morning,
Im here asking for help to restore/recover my toshiba laptop. it just recently went to Blue recovery screen stating .......
your pc couldnt start properly.
the applicarion or operating system couldnt be loaded because a required file is missing or contains errors.
file: \windows\sytem32\winload.efi
error code: 00xc0000001
youll need to use the recovery tools on your installation media. if you dont have any installaion media(like a disc or usb device), contact your system adminstrator or pc manufacturer...
please help me to restore my pc to out of box settings. I WOULD REALLY APPRECIATE THE HELP. im not very computer savy but if guided i can follow instructions.
i did try the hold "0" the tap the power and follow prompts but but just goes back to the screen explained above. please help
thank you in advance.
gabriel suarez
Attachments:
COLONSUAREZ - WIN_20140520_114858.JPG ‏105 KB

Satellite C855D-S5103
In case Windows does not boot, you should be able to enter the recovery environment, which in Windows 8.x looks like the picture below.
From Troubleshoot you can go to System Restore, Safe Mode, Startup repair, a command prompt, the UEFI, or even restore the hard disk to its original out-of-the-box contents from the recovery partition.
According to Microsoft, trying and failing to boot several times will eventually take you to the recovery environment instead. According to Toshiba, you can also get there by pressing F2 or the zero key on powering up.
If you have completely shut down, Toshiba says you can get there using F12 to reach the UEFI boot menu and then selecting HDD Recovery. One might expect that to take you to Toshiba's recovery back to factory-new, but it actually leads to the recovery environment above.
Please try these out and let us know what you learn.
-Jerry

HOWTO: Create a Boot Configuration That Has No Driver Signature Checks. Disable Driver Integrity Checks and Install a Custom Non-Signed Driver

Hello,
Recently, I had a task where I needed to install a custom non-signed driver onto my Windows 8 64-bit setup. As it is known, Windows has driver enforcement policies that, as a security measure, do not allow you to install non-signed drivers.
I did not want to alter my current boot configuration so I decided to create a separate boot entry that would have driver signing policies disabled. For some reason I did not find any good source that would contain a step-by-step instruction on completing
this task, so I decided that I'd better share my experience here.
Lastly, there are multiple ways how you could turn off driver enforcement policies, but I find the way to do this via boot manager.
Here's how you can do that.
1. Press WindowsKey and type 'cmd' (without quotes) to find Command prompt, then click Command prompt icon. If you have User Account Control turned on, hold Ctrl+Shift keys pressed when clicking the icon.
This will force Windows to ask you for elevation of command prompt. Elevation is necessary for editing Boot Configuration Database (BCD), the database used by Windows boot manager to store boot settings.
2. In the User Account Control window click Yes to confirm elevation of command shell.
3. At the command prompt type
bcdedit
to list your BCD entries.
This will give you an output like:
Windows Boot Manager
identifier {bootmgr}
device partition=\Device\HarddiskVolume2
path \EFI\Microsoft\Boot\bootmgfw.efi
description Windows Boot Manager
locale en-US
inherit {globalsettings}
integrityservices Enable
default {current}
resumeobject {a329b5cf-fb29-11e1-a74d-f2c962d62240}
displayorder {a329b5d0-fb29-11e1-a74d-f2c962d62240}
{a329b5cc-fb29-11e1-a74d-f2c962d62240}
{a329b5ca-fb29-11e1-a74d-f2c962d62240}
{a329b5c2-fb29-11e1-a74d-f2c962d62240}
{current}
{a329b5d8-fb29-11e1-a74d-f2c962d62240}
toolsdisplayorder {memdiag}
timeout 30
Windows Boot Loader
identifier {a329b5d0-fb29-11e1-a74d-f2c962d62240}
device vhd=[D:]\win8prowmc01.vhdx
path \Windows\system32\winload.efi
description Windows 8
locale en-US
inherit {bootloadersettings}
recoverysequence {a329b5d1-fb29-11e1-a74d-f2c962d62240}
recoveryenabled Yes
isolatedcontext Yes
allowedinmemorysettings 0x15000075
osdevice vhd=[D:]\win8prowmc01.vhdx
systemroot \Windows
resumeobject {a329b5cf-fb29-11e1-a74d-f2c962d62240}
nx OptIn
bootmenupolicy Standard
The section that starts with Windows Boot Manager lists current settings for the boot menu. Here you find what boot entry is chosen by default, this is the one what you will boot into if you do not select any boot entry in the
boot menu.
The following record
default {current}
indicates that by default my Windows boots into configuration which I use at the moment (currently booted Windows configuration).
To find out what exactly is current configuration, look into the list of boot entries, records that contain boot loader configuration and are titled as Windows Boot Loader in the bcdedit output.
For example, the entry shown above is one of my boot configurations. This is one of the boot entries listed on the boot manager screen when I start my PC and it looks like:
Windows Boot Loader
identifier {a329b5d0-fb29-11e1-a74d-f2c962d62240}
device vhd=[D:]\win8prowmc01.vhdx
path \Windows\system32\winload.efi
description Windows 8
locale en-US
inherit {bootloadersettings}
recoverysequence {a329b5d1-fb29-11e1-a74d-f2c962d62240}
recoveryenabled Yes
isolatedcontext Yes
allowedinmemorysettings 0x15000075
osdevice vhd=[D:]\win8prowmc01.vhdx
systemroot \Windows
resumeobject {a329b5cf-fb29-11e1-a74d-f2c962d62240}
nx OptIn
bootmenupolicy Standard
This record has a unique GUID identifier that can be used to reference this boot entry, which is:
identifier {a329b5d0-fb29-11e1-a74d-f2c962d62240}
If we look at the Windows Boot Manager settings, we'll see this entry is the first in order to be displayed in the boot menu on OS start (I marked the unique bits):
displayorder {a329b5d0-fb29-11e1-a74d-f2c962d62240}
{a329b5cc-fb29-11e1-a74d-f2c962d62240}
It references my VHD drive, a virtual hard drive where my Windwos 8 setup is residing:
device vhd=[D:]\win8prowmc01.vhdx
And it also specifies that the boot manager must use UEFI BIOS extension code to access my Windows boot partition:
path \EFI\Microsoft\Boot\bootmgfw.efi
3. Now locate the current boot entry.
Current boot entry contains boot settings used to boot into Windows configuration to which you are currently booted. It is referenced in the list of boot entries as a Windows Boot Loader record that has the {current} keyword inside and may
look like:
Windows Boot Loader
identifier {current}
device vhd=[D:]\win8rtm.vhdx
path \Windows\system32\winload.efi
description Windows 8 Enterprise RTM
locale en-US
inherit {bootloadersettings}
recoverysequence {a329b5c3-fb29-11e1-a74d-f2c962d62240}
integrityservices Enable
recoveryenabled Yes
isolatedcontext Yes
allowedinmemorysettings 0x15000075
osdevice vhd=[D:]\win8rtm.vhdx
systemroot \Windows
resumeobject {a329b5c1-fb29-11e1-a74d-f2c962d62240}
nx OptIn
bootmenupolicy Standard
hypervisorlaunchtype Auto
Because we are more than happy with current configuration and want to base our new boot configuration on these settings, we need to copy this boot entry ({current}) to a new boot entry.
This is done by running the following command:
C:\Windows\system32>bcdedit /copy {current} /d "No Driver Signature Check"
Parameter /d here indicates that the following sequence of characters specifies the display name for the new boot entry that we are creating. The name inside the double quotes will be displayed in the boot menu when you boot your Windows.
In other words, if you know restart your system, you'll see the new No Driver Signature Check in the boot menu.
When copied, the entry is automatically given a new GUID identifier, so upon running the command above, you'll see the following line returned (you'll have an other GUID since these are unique identifiers):
The entry was successfully copied to {a329b5d8-fb29-11e1-a74d-f2c962d62240}.
4. Make sure the entry has been successfully created.
Run the same bcdedit. (You may specify /enum or /v, or both /enum /v parameters at the prompt to get more detail about boot entries, but simple bcdedit is just enough to see the new entry):
C:\Windows\system32>bcdedit
Windows Boot Manager
identifier {bootmgr}
device partition=\Device\HarddiskVolume2
path \EFI\Microsoft\Boot\bootmgfw.efi
description Windows Boot Manager
locale en-US
inherit {globalsettings}
integrityservices Enable
default {current}
resumeobject {a329b5cf-fb29-11e1-a74d-f2c962d62240}
displayorder {a329b5d0-fb29-11e1-a74d-f2c962d62240}
{a329b5cc-fb29-11e1-a74d-f2c962d62240}
{a329b5ca-fb29-11e1-a74d-f2c962d62240}
{a329b5c2-fb29-11e1-a74d-f2c962d62240}
{current}
{a329b5d8-fb29-11e1-a74d-f2c962d62240}
toolsdisplayorder {memdiag}
timeout 30
Windows Boot Loader
identifier {current}
device vhd=[D:]\win8rtm.vhdx
path \Windows\system32\winload.efi
description Windows 8 Enterprise RTM
locale en-US
inherit {bootloadersettings}
recoverysequence {a329b5c3-fb29-11e1-a74d-f2c962d62240}
integrityservices Enable
recoveryenabled Yes
isolatedcontext Yes
allowedinmemorysettings 0x15000075
osdevice vhd=[D:]\win8rtm.vhdx
systemroot \Windows
resumeobject {a329b5c1-fb29-11e1-a74d-f2c962d62240}
nx OptIn
bootmenupolicy Standard
hypervisorlaunchtype Auto
Windows Boot Loader
identifier {a329b5d8-fb29-11e1-a74d-f2c962d62240}
device vhd=[D:]\win8rtm.vhdx
path \Windows\system32\winload.efi
description No Driver Signature Check
locale en-US
inherit {bootloadersettings}
recoverysequence {a329b5c3-fb29-11e1-a74d-f2c962d62240}
integrityservices Enable
recoveryenabled Yes
isolatedcontext Yes
allowedinmemorysettings 0x15000075
osdevice vhd=[D:]\win8rtm.vhdx
systemroot \Windows
resumeobject {a329b5c1-fb29-11e1-a74d-f2c962d62240}
nx OptIn
bootmenupolicy Standard
hypervisorlaunchtype Auto
The entry has been created and given a unique a329b5d8-fb29-11e1-a74d-f2c962d62240 ID. It now has exactly same boot settings as the boot entry we used to boot into current configuration of Windows.
5. Modify created No Driver Signature Check entry and specify that Windows must have driver integrity checks disabled when booted using this boot entry.
Any modifications to boot entries are made using /set parameter. To indicate that we modify a specific boot entry, we must specify the GUID for the No Driver Signature Check record, which is:
identifier {a329b5d8-fb29-11e1-a74d-f2c962d62240}
In other words, to edit (add or change) an option for the boot entry, we need to use the following command syntax:
C:\Windows\system32>bcdedit /set GUID <boot_option> [<option_value>]
First, we must specify that we don't want integrity checks be made. This is done by adding the loadoptions option and setting it to DISABLE_INTEGRITY_CHECKS value:
C:\Windows\system32>bcdedit /set {a329b5d8-fb29-11e1-a74d-f2c962d62240} loadopti
ons DISABLE_INTEGRITY_CHECKS
The operation completed successfully.
6. Verify that load option has been added.
Run the bcdedit command:
Windows Boot Loader
identifier {current}
device vhd=[D:]\win8rtm.vhdx
path \Windows\system32\winload.efi
description Windows 8 Enterprise RTM
locale en-US
inherit {bootloadersettings}
recoverysequence {a329b5c3-fb29-11e1-a74d-f2c962d62240}
integrityservices Enable
recoveryenabled Yes
isolatedcontext Yes
allowedinmemorysettings 0x15000075
osdevice vhd=[D:]\win8rtm.vhdx
systemroot \Windows
resumeobject {a329b5c1-fb29-11e1-a74d-f2c962d62240}
nx OptIn
bootmenupolicy Standard
hypervisorlaunchtype Auto
Windows Boot Loader
identifier {a329b5d8-fb29-11e1-a74d-f2c962d62240}
device vhd=[D:]\win8rtm.vhdx
path \Windows\system32\winload.efi
description No Driver Signature Check
locale en-US
loadoptions DISABLE_INTEGRITY_CHECKS
inherit {bootloadersettings}
recoverysequence {a329b5c3-fb29-11e1-a74d-f2c962d62240}
integrityservices Enable
recoveryenabled Yes
isolatedcontext Yes
allowedinmemorysettings 0x15000075
osdevice vhd=[D:]\win8rtm.vhdx
systemroot \Windows
resumeobject {a329b5c1-fb29-11e1-a74d-f2c962d62240}
nx OptIn
bootmenupolicy Standard
hypervisorlaunchtype Auto
7. Add the option that turns on test signing mode and disables checks of driver signature.
Adding the testsigning option and setting it to ON does the trick for us:
C:\Windows\system32>bcdedit /set {a329b5d8-fb29-11e1-a74d-f2c962d62240} TESTSIGNING ON
8. Now we have a boot entry that enables Windows not to do integrity checks and digital signature validation.
We check it by running bcdedit:
Windows Boot Loader
identifier {a329b5d8-fb29-11e1-a74d-f2c962d62240}
device vhd=[D:]\win8rtm.vhdx
path \Windows\system32\winload.efi
description No Driver Signature Check
locale en-US
loadoptions DISABLE_INTEGRITY_CHECKS
inherit {bootloadersettings}
recoverysequence {a329b5c3-fb29-11e1-a74d-f2c962d62240}
integrityservices Enable
recoveryenabled Yes
testsigning Yes
isolatedcontext Yes
allowedinmemorysettings 0x15000075
osdevice vhd=[D:]\win8rtm.vhdx
systemroot \Windows
resumeobject {a329b5c1-fb29-11e1-a74d-f2c962d62240}
nx OptIn
bootmenupolicy Standard
hypervisorlaunchtype Auto
9. Type 'exit' without quotes to exit from command prompt, and restart Windows.
Upon booting you will be present with a new boot option to start Windows in configuration that allows you to install custom non-signed drivers.
Hope this will help anybody to create their own custom boot configurations.
Well this is the world we live in And these are the hands we're given...

Hi,
Thank you for sharing the solutions & experience here. It will be very beneficial for other community members who have similar questions.
Regards,
Kelvin hsu
TechNet Community Support

Winload.efi

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