Windows failed to start. Required device inaccessible.

Windows failed to start. A recent hardware or software change could be the cause. The boot selection failed because a required device is inaccessible . Both hard disk and memory test passed. Please let me know what can be done. I think it's battery issue because it says battery problem but even if I remove the battery it's not going to windows home screen. Also tried I'm safe mode, did not work.

Hi @San16,
Welcome to the HP Forums!
It is a great place to find answers and tips!
For you to have the best experience in the HP forum I would like to direct your attention to the HP Forums Guide Learn How to Post and More
I grasp that when you start your notebook you are seeing " The boot selection failed because a required device is inaccessible"
Here is a link to HP Notebook PCs - Resolve Boot Device Not Found Error Message (Windows 8, 7). As you have already tested the hard drive and memory you can omit that step.
If a recovery should be required, you will have an opportunity to backup your personal files to prevent data loss during that process. The link for the recovery process is in the document provided.
Here is a link to HP PCs - Restoring Files that were Backed Up Using HP Recovery Manager (Windows 7) should it be needed.
Best of Luck!
Sparkles1
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
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Windows Failed To Start

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I own a Lenovo Ideacentre All-in-one A700. OS is Windows 7 64 Bit. Recently I did a bluetooth software update which got stuck in between and I restarted the system. Ever since that, I get a message from Windows Boot Manager saying "Windows failed to start. A recent hardware or software change might be the cause.
To fix the problem:
1. Insert your Windows installation disc and restart the computer.
2. Choose your language settings and click next.
3. Click "repair your computer"
Status: 0xc000000f
Info: The boot selection failed because a required device is inaccessible.
I do not have the OS CD nor have I created the system restore disks. What I do have is the backup of all my data in drive D. Now, when I contacted lenovo through e-mail, they asked me to use One Key Recovery (OKR) and repair my system. I tried using that but then when I tried to take the backup of my files I get a message saying "The Image file is not valid." I did a bit of research in lenovo forums and found out that those whose OKR version is older than 7 face this issue. I checked up my OKR version and found it to be 3.
Here is the link : http://consumersupport.lenovo.com/hk/en/HintsandTips/hints_show_13263616724030.html
I have tried all the other options to load my OS including safe mode, safe mode with command prompt and last known good configuration but it comes back to the same screen. I am also unable to update my OKR to the latest version. I have a lot of important files located in my system. Now, can someone please help/guide me as to what I should do in order to use the backup created already in D drive and restore my system.
Thanks for all the Help !!

Well sorry to say this, but if you look that error up in Microsoft or a internet search it means the HDD is bad.
The only thing I can recommend is to try and take the HDD out and pull the Data from another PC or boot Linux and see if you can copy your Data that way.
Hopefully you can still save your data.
Good luck.
IT Specialist and Consultant
Lenovo Tablet Evangelist
Current Machines: IdeaCentre A300, ThinkPad Tablet, IdeaPad U410, and Yoga 3 Pro Touch
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My cousin have this laptop and it could not boot the system. It shows message:
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By the way: check Toshiba US support forum under http://laptopforums.toshiba.com/tshb/
Maybe someone there can explain to you how it works to start HDD OS installation.

0xc000025 - Trying Recovery System via Recovery Manager: Windows failed to start.

Name: Pavilion dv4-2161nr
Prod. Number: WA691UA#ABA
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     Regards,
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I tested the Hard Drive and it passed 100% ok.
I tested the Memory and it passed 100% ok.
My PC runs a Win 7 Home Premium.
I've just run a Win 7 Ultimate CD Installation. It formatted the System Partition, but I couldn't get Win 7 installed because when I filled in my Product Key it said the Product Key wasn't right. Is it because Product Key for Win 7 Home Premium wouldn't work on a Win 7 Ultimate installation?
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Rafael.

F11 Recovery don`t work - error Windows failed to start

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Hi Bwald,
Thank you for visiting the HP Support Forums and Welcome. I have read your thread on your HP Pavilion g6 Notebook and getting a Windows Failed to start. Try performing a hard reset. When performing a hard reset please note remove any and all USB devices, and remove memory cards from the card reader slot. Disconnect all non-essential devices. You could try a system restore. Here is a link on what to do when System Restore fails. If that does not help you will need to return the BIOS to factory defaults. In this document it gives you a step by step to resolve the boot device error.
Hope this helps.
Thanks.
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
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L655 Windows failed to start up

Have the satellite L655 Laptop and i get this. Windows failed to start up. A recent hardware or software change might be the cause. To fix the problem: 1. Insert your windows installation disc and restart your computer. 2.choose your language settings and then click next. 3.click "repair your computer." If you do not have this disc, contact your system administrator or computer manufacturer for assistance. File: \windows\ststem32\winload.exe Status: 0xc000000f Info: The selected entry could not be loaded because the application is missing or corrupt. I ordered the disk from Toshiba windows 7 I have a boot disk that I created it will boot from that disk but not the recovery disk from them, but the computer does not load the CD. F1 and F8 do not work only F2 and F12

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Hi how can i fix my pc if the screen display "windows failed to start"

I was try repair my pc but in the screen only display the following message : Windows failed to start.Arecent hardware or software change might be the cause.To fix the problem;
1.-Insert your windows installation disc and restart your computer.
2.-Choose your lenguage settings,and then click "next"
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If you dont have this disc contac your system administrator or computer manufacturer for assistence.
File"\windows\system32\windload.exe
status:0xc0000221
info: The file is possible corrupt.Its header checksum does no match the computed checksum.
I just dis all thos things,reinstal recovery cd but always display the same on the screen ,HOW CAN FIX THIS PROBLEM,thank you

I was reinstall the system many times but always is the same message on screen
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Locate a Service Center
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Boot Up Error 0xc0000034 - windows failed to start

I came back from work yesterday and found my laptop displaying a black screen saying that "windows failed to start. A recent hardware or software change might be the cause" and to repair using the windows 7 installation disc.
However windows was pre-installed on my machine so i dont have a disc. I left it on during the day so i can only assume it restarted due to an auto update.
I only got this computer the other day and i really dont need this hassle.
Any ideas??
Ta

> However windows was pre-installed on my machine so i dont have a disc.
You didnt receive any disks because there was preinstalled software called Toshiba Recovery Disk creator.
This allows you to create recovery disk which would help to restore the OS.
But usually there should be a HDD recovery option too.
Try this:
Press F8, choose Repair my Computer, HDD recovery.
If this will not help, then you will need the recovery disk. You can order this here:
https://backupmedia.toshiba.eu/landing.aspx

Windows Failed To Start & Startup Repair Doesn't Work!!!!

I have an HP Pavilion dv5-2135dx laptop... I don't know what went wrong but I randomly have a "Windows Error Recovery" screen when i turn it on: "Windows Failed to Start. A recent hardware/software change might be the cause" and i can either choose "Launch Startup Repair" or "Start Windows Normally" BUT when i attempt to start windows normally, it goes back to the "Windows Error Recovery" Screen. If i click "Launch Startup Repair" it doesn't do anything but stay on another screen and i've let it be on that screen for a whole day and nothing happens. I've tried safe mode and again it goes back to the "Windows Error Recovery" screen. I've tried all the debugging options and it goes back to the error screen. When I shut it down and tapped F10 to enter the bios menu, i went under the diagnostic tab and ran both the Hard Drive Test and Memory Test. Here are the results:<br>Primary Hard Drive Test- Hard Disk Full (305)<br>Memory Test- Passed<br>But i have no idea what that means because my laptop is brand new and it has 500gb... so the harddrive shouldnt be full. I'm in need of help because I don't know what to do after looking through abunch of forums... Please help me.

Hi i have almost the same problem but my labtop is an Hp HDX 16 and it dosent let me start up eather it goes into a blank screen and i also did the start up recovery and nothing i dont know what else todo

Windows Failed To Start (Windows 7)

I am not 100% sure where to post this, but I saw a similar post here, but not with the exact problem.
My spouse was playing a video game on the laptop when it suddenly shut down and when he rebooted the computer it gave him the error "Windows Failed to Start. A recent hardware or software chage might have caused the issue after you install Windows Updates." Well the two options we have are the repair function and to start windows normally. The repair funtion said the memory was fine, but we could not do anything else with the repair.
We tried pressing F8 to get the computer in safe mode, but when you click on safe mode you go right back to the error screen.
When pressing F11 to try a system recovery, it also goes right back to the error screen.
We do not have the original windows disk to try a repair that way since the computer was given to us by a family member and the disks were not included.
Any help or advise will be greatly appreciated.

Where did you see version is Vista? Some models that I have seen have Vista listed in BIOS-but actually have Windows 7 installed.
Can you check the COA label wih license key attached to bottom of laptop & let us know if the version is Vista or Windows 7.
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Windows failed to start, please insert windows disk

Hello,
I have a HP envy 17 3d,
When I turn my laptop on it says the following.
Windows failed to start, a recent hardware or software change might be the problem.
\Boot\BCD
0XC/000000f
An error occurred whilst trying to read the boot configuration data.
I don't have a windows disk but a computer repair guy is bringing one over later. I just wanted to make sure I know everything I need to know, I want to avoid loosing any data!
Thank you
Erin

The BCD store can be recovered by someone who knows what they are doing.
If you have a usb HP recovery flash drive you can access Windows startup repair.
There is aslo a utility called EasyBCD that will allow you to repair an issue like this easily as well.
BTW it always helps if you state which operating system is installed. That way we can be on the same page. Since the error is BCD then I already know that it is a Windows & or Windows 8 (.1) OS, but it helps us to know for certain.
The tutorial on the following web page shows what the computer guy is likely to do to resolve the issue if your notebook has a MBR formatted disk.
http://think-like-a-computer.com/2012/04/17/boot-bcd-0xc000000f-windows-7/
****Please click on Accept As Solution if a suggestion solves your problem. It helps others facing the same problem to find a solution easily****
2015 Microsoft MVP - Windows Experience Consumer

Windows failed to start. winload.exe corrupt

Been having a few problems with my Equius so decided to boot, do F8, and do a toshiba system restore.
Started up, and began formatting the disk. All of a sudden it blue screened.
Trouble is now I cant even boot that far to get the recovery/restore option. I get :-
Windows failed to start. A recent hardware or software change might be the
cause. . .
File: \Windows\system32\winload.exe
Status:0xc000000f
Info: The selected entry could not be loaded because the application is
missing or corrupt.
Not sure how it all works but I assume the recovery stuff is stored on a separate partition. Trouble is I guess you need to be able to start to load windows before you can even get to this?
I've downloaded and tried a vista boot recovery disk with no joy, and of course, toshiba dont supply a vista disk. How on earth do I recover from this situation?

Hello
At first I must say that I cannot understand why you didnt write which Equium do you have exactly?
Such info is always good for better understanding and discussion.
So, if recovery media was not delivered I think you have newest notebook model. Recovery media is not delivered with new notebooks and it must be created using preinstalled "Toshiba Recovery Disc Creator". This software is preinstalled on all new Vista notebook. it can happen that people don't think about it and because of that Toshiba has designed small reminder with follow content:
+*Important INFORMATION*+
+*your system is equipped with hard disk recovery system. If you need to repair*+
+*your computer by restoring it to original factory state, you can do it directly*+
+*from harddisk (press F8 when you boot your computer, choose "Repair your computer"*+
+*and follow the menue instructions) or create a bootable Recovery Disc Medium for this purpose.*+
+*Toshiba recommends you to create Recovery Disc Medium using the "Toshiba Recovery Disc Creator"*+
+*to ensure that you are able to restore your computer to the original factory installed state, even if your computer gets seriously damaged.*+
So now the question: Have you seen this reminder? Have you ignored it? Have you started preinstalled OS at the first day?
What you have done exactly?
Sorry for all those questions but lot of people make big mistake: they don't even start preinstalled Vista and install WXP immediately.
On this way you will not be able to create recovery DVD and you will also loose F8 option to install Vista from HDD.
To be honest I don't know why this thread was posted under WXP category. As I wrote before after WXP installation on new notebooks you will not be able to use F8 and HDD recovery option.
So if you want good answer please explain to us exactly which notebook model do you have and what you have done in the past.
Bye my friend. Just stay cool we will find some solution or good explanation why this happen
Have a nice day.

Windows failed to start: Insert Windows installtion disk?

Satellite A205-S5843
Windows Update the night before. Next day, the browser was stalling. Eventually Task Manager reported Web Site Browser was not running. I closed down all programs and hit Restart. At the restart all that came on was a small image like when an image is loading. It continued for 20 minutes. None of the buttons would do anything, not even the power button or escape button. I finally unplugged the machine. Now when I turn on the power, I get the following message...
=============
Windows failed to start. A recent hardware or software change might be the cause. To fix the problem:
1. Insert your Windows installation disk and restart your computer.
2. Choose language settings. Click next.
3. Click "Repair your computer"
file: \Boot\BCD
Status: 0xc0000001
Info: An error occurred whi;e attempting to read the boot configuration data.
============
Things I have tried:
Disks. I do not have the Windows disk. The recovery disk I made and filed when I purchased the machine gave the same error.
Various button combinations. F8 key + power button. 0 (zero) key + power button. F2 and F12 are the only buttons I can access. I tried Reset to Defaults. Same results on power start.
Any feedback would be appreciated.
Solved!
Go to Solution.

Recovering to the factory default setup, and rebuilding from there, while not always necessary, is still a good thing every now and then, especially if your system has become quite messed up or corrupted.
I am glad you were able to work it out with your Toshiba Recovery disks. In double checking your specs, it would seem your system never came with the Recovery Partition on your hard drive. Otherwise, there would have been the Toshiba Recovery Media Creator program listed on your pre-installed software, which it is not. So, keep those Recovery Disks safe, and maybe think of making disk copies of each to have a spare.
See these instructions to aid in the upgrade to Windows 7, if any problems persist try the Toshiba Windows 7 Software Installer
How to upgrade to Windows 7 with the Toshiba Upgrade Assistant
Toshiba tools to simplify the Windows 7 installation process (Toshiba Upgrade Assistant for Win7 and Toshiba Win7 Software Installer)
You are very welcome. And, thank you for letting us know what worked. We very much appreicate it when people get back to us, as most do not.
Let us know how it all turns out. Good luck.
Mike

Windows failed to start. Required device inaccessible.

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