"Unexpected Kernel Mode Trap (Wdf01000.sys)" and a Blue Screen appearing frequently on my Windows 8.1 (64-bit) laptop and laptop restarting all of a sudden.

Hi I am Arka Dey. I am using a
Windows 8.1 64-bit single language Dell laptop. Recently I have installed an update to my Windows 8.1 (X-64) operating system from the "Windows Update" available in the "Control Panel" section of my laptop.
But from that very day when I installed the updates, my laptop started behaving weird sometimes.
The problem is while I am using my laptop, a
blue screen suddenly appears and it says, " Your PC has run into a problem and needs to be restarted." Along with it there is
written the following message: " You can later search for this online - Unexpected Kernel Mode Trap (Wdf01000.sys)".
After displaying this for a few seconds in the blue screen mode, my
laptop automatically restarts. This has been happening for sometime for the past few weeks. I do not understand the meaning of the message displayed in the blue screen and nor do I know the reason behind its occurrence. Please help me with
a solution to this irritating problem as I am not a student of computer related sciences and software technologies. Neither am I that tech savvy. So please do help me with a guide or set of instructions to solve this problem of mine. The detailed specifications
of my laptop are given as follows:-
System Information
OS Name Microsoft Windows 8.1 Single Language
Version 6.3.9600 Build 9600
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Name DELL
System Manufacturer Dell Inc.
System Model Inspiron 5521
System Type x64-based PC
System SKU Inspiron 5521
Processor Intel(R) Core(TM) i7-3537U CPU @ 2.00GHz, 2501 Mhz, 2 Core(s), 4 Logical Processor(s)
BIOS Version/Date Dell Inc. A11, 29-08-2013
SMBIOS Version 2.7
Embedded Controller Version 1.01
BIOS Mode UEFI
BaseBoard Manufacturer Dell Inc.
BaseBoard Model Not Available
BaseBoard Name Base Board
Platform Role Mobile
Secure Boot State On
PCR7 Configuration Binding Not Possible
Windows Directory C:\WINDOWS
System Directory C:\WINDOWS\system32
Boot Device \Device\HarddiskVolume1
Locale India
Hardware Abstraction Layer Version = "6.3.9600.17031"
User Name DELL\Arka Dey
Time Zone India Standard Time
Installed Physical Memory (RAM) 8.00 GB
Total Physical Memory 7.88 GB
Available Physical Memory 5.08 GB
Total Virtual Memory 15.9 GB
Available Virtual Memory 12.6 GB
Page File Space 8.00 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
N.B. : If you need more specifications about hardwares then I can send them to you in later messages. Please help me.

Hi roberto-
Yes, its a shame. I have also contacted lenovo support hoping that they can sort out this problem. However, first response from them was 'contact your internet service provider since internet connectivity goes down'! :-/ I am hoping I have been able to get through to them now at least about where the problem lies. I wonder if anyone has tried using the laptop with the same broadcom wireless adapter with some other version of OS (linux, windows 7 etc.) and whether they still face the same problem. I haven't tried that yet. If this is just an OS / driver issue I hope someone somewhere is working on a fix! If not, I guess the only other solution would be to get an external USB wifi adapter but that is not something one would want to do when you buy a brand new Lenovo laptop. This was a big let down for me.
-sag

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Unexpected kernel mode trap wdf01000.sys

  HI I been facing this issue last couple of days its becouse while browzing the interner and BSNl model U 100 which is based in India . I goin to give you the whocrased report below here. Crash Dump Analysis
Crash dump directory: C:\WINDOWS\Minidump
Crash dumps are enabled on your computer.
On Sun 02-08-2015 03:41:17 GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\080215-24031-01.dmp
This was probably caused by the following module: wdf01000.sys (Wdf01000+0x316CA)
Bugcheck code: 0x1000007F (0x8, 0xFFFFD00022764130, 0xFFFFD0002277FFE0, 0xFFFFF801B14C86CA)
Error: UNEXPECTED_KERNEL_MODE_TRAP_M
file path: C:\WINDOWS\system32\drivers\wdf01000.sys
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: Kernel Mode Driver Framework Runtime
Bug check description: This indicates that a trap was generated by the Intel CPU and the kernel failed to catch this trap.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem. This problem might be caused by a thermal issue.
The crash took place in a standard Microsoft module. Your system configuration may be incorrect. Possibly this problem is caused by another driver on your system that cannot be identified at this time.
  System Information (local)
computer name: VISAKH
windows version: Windows 8.1 , 6.3, build: 9600
windows dir: C:\WINDOWS
Hardware: HP 15 Notebook PC, Hewlett-Packard, 2212
CPU: GenuineIntel Intel(R) Core(TM) i7-4510U CPU @ 2.00GHz Intel586, level: 6
4 logical processors, active mask: 15
RAM: 6370975744 total
  Please help me to resolve this problem. Regards Visakh

  HI I been facing this issue last couple of days its becouse while browzing the interner and BSNl model U 100 which is based in India . I goin to give you the whocrased report below here. Crash Dump Analysis
Crash dump directory: C:\WINDOWS\Minidump
Crash dumps are enabled on your computer.
On Sun 02-08-2015 03:41:17 GMT your computer crashed
crash dump file: C:\WINDOWS\Minidump\080215-24031-01.dmp
This was probably caused by the following module: wdf01000.sys (Wdf01000+0x316CA)
Bugcheck code: 0x1000007F (0x8, 0xFFFFD00022764130, 0xFFFFD0002277FFE0, 0xFFFFF801B14C86CA)
Error: UNEXPECTED_KERNEL_MODE_TRAP_M
file path: C:\WINDOWS\system32\drivers\wdf01000.sys
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: Kernel Mode Driver Framework Runtime
Bug check description: This indicates that a trap was generated by the Intel CPU and the kernel failed to catch this trap.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem. This problem might be caused by a thermal issue.
The crash took place in a standard Microsoft module. Your system configuration may be incorrect. Possibly this problem is caused by another driver on your system that cannot be identified at this time.
  System Information (local)
computer name: VISAKH
windows version: Windows 8.1 , 6.3, build: 9600
windows dir: C:\WINDOWS
Hardware: HP 15 Notebook PC, Hewlett-Packard, 2212
CPU: GenuineIntel Intel(R) Core(TM) i7-4510U CPU @ 2.00GHz Intel586, level: 6
4 logical processors, active mask: 15
RAM: 6370975744 total
  Please help me to resolve this problem. Regards Visakh

There is always a blue screen appears after the Apple logo during the booting process. And then everything is back to normal. What is this thing? Is there something wrong with my screen or something?

There is always a blue screen appears after the Apple logo during the booting process. And then everything is back to normal. What is this thing? Is there something wrong with my screen or something?

Nah - that's just the normal boot process.
Clinton

HT1492 The update-process of Xcode jan. 2013 ver. did stop whilst installing the iMac did reset and a gray screen appears with the message: Diskdrive 0 space available - then reset and gray screen again. How can I delete the update?

After allowing my iMac updating about 80 apps, the process did stop whilst installing new ver. Xcode jan. 2013 - the iMac did reset and a gray screen appears, with white letters: 0 space on Harddrive! It wasn't any sign the harddisk had not space enough, to complete the update - until the reset occours. For us and our little company a catastrophic event.
After inserting the original Snow Lepard Install Disk, the Diskmanager shows no error. No test shows any sign of error in Software. Freeing some of the empty space shows 12,5 Gb.
Perhaps this is a new kind of error happen with this combinations of the new versions of Apps and Xcode...?
Perhaps it's a know problem. I will be truely happy when finding a solution in this community.
Kindest Regards from Scandinavia

If it's slow on startup it would be extensions loading or LaunchDaemons starting up.
You should have a look in:
/Library/LaunchDaemons
/Library/Extensions
You can count out anything in your home folder and it shouldn't put anything in /System as that's reserved for Apple.

HT1688 I dropped my Iphone and a blue screen appears I can't turn on

Can anybody help me? I dropped my phone and I just get a blue screen I can't turn it on now! What should I do?

Make an appointment at the genius bar. An out of warranty replacement will cost you US$199.
There are no magic words that will fix broken hardware.

Hi my IPhone 5s was turned off, the red and the blue screen appeared. After flashing iTunes connectivity options into What should I do?

Hi
My iphone 5s was turned off.
Showing red & blue on the screen.
It show apple mark then i have to conect cable to the iTunes.

Iphone is geting hot & battery is low

Unexpected kernel mode error trap (Ndu.sys)

I've been getting thus BSOD error "unexpected kernel mode trap (ndu.sys)" after
installing visual studio 2013 when in connect to the internet and open the browser. If the browser is not opened then it runs just fine even if the internet is connected.
The worst situation even makes my PC crash 5 times in an hour. Almost crazy.
I've read the related topic about upgrade my driver would solve the question. But I just
clean reinstall Windows 8.1 two days ago. Before that I was still using Windows 8.1, VS2013, older driver and patch, and never got BSOD before. Why newer and cleaner environments cause PC so much trouble? I don't get it and come seek for help.
Here is one of my BSOD dump file. Please check it.
https://dl.dropboxusercontent.com/u/62254866/072614-11859-01.rar
Thank you very much!

I suggest you start by doing a system file check. This one crash was Related to Ndu.sys Windows Network Data Usage Monitoring Driver from Microsoft Corporation
Please run a system file check (SFC)
All instructions are in our Wiki article below...
Should you have any questions please ask us.
System file check (SFC) Scan and Repair System Files
Wanikiya and Dyami--Team Zigzag

HT1436 My Power Mac G5 will not fully boot without safe mode, it only comes to a blue screen where my cursor duplicates in to 2, (one is frozen, one can move by moving the mouse). What is my problem, and how do I fix it?

My Power Mac G5 will not fully boot without safe mode, it only comes to a blue screen where my cursor duplicates in to 2, (one is frozen, one can move by moving the mouse). What is my problem, and how do I fix it?

Great clue Lukas...
One way to test is to Safe Boot from the HD, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, Test for problem in Safe Mode...
PS. Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive
Reboot, test again.
If it only does it in Regular Boot, then it could be some hardware problem like Video card, (Quartz is turned off in Safe Mode), or Airport, or some USB or Firewire device, or 3rd party add-on, Check System Preferences>Accounts>Login Items window to see if it or something relevant is listed.
Check the System Preferences>Other Row, for 3rd party Pref Panes.
Also look in these if they exist, some are invisible...
/private/var/run/StartupItems
/Library/StartupItems
/System/Library/StartupItems
/System/Library/LaunchDaemons
/Library/LaunchDaemons

IMac G5 – Won't startup except in Safe Mode (10.5.5). Otherwise Blue Screen

I’ve had my iMac (pre-iSight) for about 3 years now and up until recently never had any major problems with it, despite using it for about 12 hours per day, every day.. A couple of minor problems however had developed, but several months ago and didn’t seem to affect the system:
(1) Software update stopped working (had to download & install updates manually) &
(2) Couldn’t verify or repair permissions (even pre 10.5.5. Even when I tried to repair them from another startup disk, the message I got was ‘no package receipts’ – although I could see that they were there in the “receipts” library folder)
A couple of days ago I decided to try and fix the problems by erasing my startup disk (after backing up all my data of course) and re-installing 10.5 from the installation DVD and then bringing the system up to date. At the time I did this I hadn’t upgraded or installed any new software for several weeks.
For about one day after that it worked fine. The only ‘alarming’ thing that I noticed during that day was that whilst playing a movie the CPU temperature rose to about 89 C. (I use Temperature Monitor). I read somewhere that the CPU temperature should not exceed 85 for this model and that if it did the system would either shutdown or go to sleep, so I was surprised to see it go as high as 89 (assuming that the right temperature was being reported) before it went to sleep. However, even after that it, it started up correctly a couple of times.
Since then it will only boot in Safe mode, and when it does it carries on working indefinitely without any problems. The only thing that I lose in safe mode which seems odd – in addition to all the things that I know I should lose – is Audio. The preferences panel says: no input, output devices attached (ie not even the ones built-in).
If I try a normal start up, the system will go through the grey screen, apple logo, spinning ‘cog’ etc and then almost always go to a blue screen where it stays put. There is a black cursor in the top left corner which, when I try to move it, duplicates itself so that I end up with 2 cursors – one which moves and one which stays in the top left corner.
On very rare occasions (about 1 time in 20) during a normal startup the system will get past the blue screen and to my desktop (in fact this happened several times consecutively before I got to the point where I could only startup in Safe Mode). However, moving the cursor into the menu bar or into the dock would result in the whole screen freezing – the cursor would move, but nothing else would happen). Also I would see that several pixels were ‘missing’ from the desktop. The desktop is normally solid green, but I would see 3 or 4 red and black pixels.
I’ve studied all the forum topics that even remotely resemble my problem and tried just about everything I can think of including:
1. Resetting SMU & PRAM (repetitively)
2. Running the Apple Hardware Test – All tests passed
3. Replacing the PRAM battery
4. Check that the fans are working (I can hear them and when I take the back off, both fans spin)
5. Erased the disk again, installed the OS from the installation DVD, so that there is no third party software on the system. (and then tried a normal boot both with the original 10.5.1 and 10.5.5 after applying the combo update).
6. I have several external disks with several copies of the OS on various partitions, including a 10.4.11, but trying to boot from any of those ends with the same result. I can only boot in safe mode, other wise I get a blue screen (or very rarely it will squeak through to the desktop & then immediately freeze).
Always the same result – safe boot only.
From reading through the various topics, I get the feeling that my problem may be related to the graphics card, but if that is the case I don’t understand why the system will always boot in safe mode and then run without any problems all day. It even allows me to play movies: very jerky (and no sound), both when I move the QT window and the images themselves, but it still plays.
Any thoughts on what the problem might be (other than fatal) would be greatly appreciated. Or an explanation why, if it is the graphics card, the system will continue working after safe boot.
I’ve copied out the system details from Profiler that I think are relevant below.
All the ‘x’’s in the the ROM revision for the ATI Radeon card look a little odd – never seen that before and I don’t know how long its been there.
Model Name: iMac G5
Model Identifier: PowerMac8,2
Processor Name: PowerPC G5 (3.0)
Processor Speed: 2 GHz
Number Of CPUs: 1
L2 Cache (per CPU): 512 KB
Memory: 1 GB
Bus Speed: 667 MHz
Boot ROM Version: 5.2.5f1
Serial Number: W8539……
ATI Radeon 9600:
Chipset Model: ATY,RV351
Type: Display
Bus: AGP
Slot: AGP
VRAM (Total): 128 MB
Vendor: ATI (0x1002)
Device ID: 0x4150
Revision ID: 0x0000
ROM Revision: 113-xxxxx-117
Displays:
iMac:
Display Type: LCD
Resolution: 1440 x 900
Depth: 32-bit Color
Built-In: Yes
Core Image: Software
Main Display: Yes
Mirror: Off
Online: Yes
Quartz Extreme: Not Supported
Display Connector:
Status: No display connected
Many thanks for your help

I had a very similar problem with my 20" iMac G5 ALS running 10.4.11. It began with random freezing inside the OS and intermittent slow booting, but quickly progressed (over a matter of days) to hanging at the blue screen before the logon window, just as you described.
I too, found that booting in Safe Mode was successful. I ruled out the airport card by manually installing that kernel extension in Safe Mode. A check of the logs pointed to "ATY" which I've since found out is a reference to the ATI drivers, which brought me to this post.
At least on my system--and I have tested this on Tiger (10.4 and 10.4.11) and Leopard (10.5 and 10.5.6), the only .kext that needs to be removed / renamed is ATIRadeon9700.kext. My preferred method of doing this is to drop to the terminal and type:
sudo mv /System/Library/Extensions/ATIRadeon.kext /System/Library/Extensions/ATIRadeon.kext.disabled
This preserves the relevant permissions and ownership, which you'd otherwise have to reset manually if you copy the file elsewhere and then delete the original in the Finder, and then want to restore it to its original condition, BTW:
sudo chmod -R 755 /System/Library/Extensions/ATIRadeon.kext
sudo chown -R 0:0 /System/Library/Extensions/ATIRadeon.kext
Any OS X update will replenish the file, so you should be at the ready to reboot into Safe Mode the first time and rename the file again.
The downside to all this is that the video acceleration doesn't work, so graphics operations are slow and jerky, but at least everything else seems to be okay, in my case anyway.
Popping open the case did indeed reveal four bulging capacitors. I bit the bullet and purchased some replacements, part number 647-UHN0J182MPD from Mouser:
http://mouser.com/Search/ProductDetail.aspx?qs=pjJ%252bhmlZec6zHXGt6EoiHw%3d%3d
Although I wasn't looking forward to desoldering my logic board, I wasn't real hopeful that I'd have success getting the local Apple shop to replace it under warranty either. I did find some helpful information on performing the fix yourself:
http://jimwarholic.com/2008/07/how-to-repair-apple-imac-g5.php
And I do want to be able to sell this thing for at least a little cash to help offset the cost of a new quad-core iMac, whenever they're released.
Fortunately, for me, the service tech at the Genius Bar at the local Apple store agreed to fix it under the power and video extended warranty, even though it was slightly outside of the warranty period, due to the fact that I had brought it in about a year ago and had the power supply replaced under the same warranty.
I almost didn't bother to bring the machine in because it's a real nasty day here today, and I figured they'd just tell me "That'll be $800 to fix it," and I'd end up doing surgery on the logic board anyway in addition to carrying the thing up and down the steps to my condo. Boy am I glad I did, though. Apple customer service rocks.

I got windows 7 and I downloaded itunes and at first it said it was incompatible but then i got it to work. Now all of a sudden my itunes won't open. It keeps saying it is incompatible. Again??

I got windows 7 and I downloaded itunes and at first it said it was incompatible but then i got it to work. Now all of a sudden my itunes won't open. It keeps saying it is incompatible. Again??

Try the following document, only be sure that none of the boxes in the compatibility mode tab are checked (not just the compatibility mode box itself):
iTunes for Windows: How to turn off Compatibility Mode

IPhone5s stuck in recovery mode after lots of times displaying blue screen of death, cannot restore it as iTunes displays error 14 on verification, same time phone crashes again with blue screen.

hi, my iPhone5s is only 3 months old, it has been like a whole month now since it started crashing, displaying the blue screen of death, since yesterday it was in the loop of restart-crash, and now it is stuck in recovery mode after lots of times displaying blue screen.
I cannot restore it as phone continues crashing again with blue screen, when iTunes displays error 14 on verification.
help please, this phone is all the means of communication I have.

It's a hardware problem. That's it. You shouldn't bother yourself with this situation. Just see an AASP.

Blue screen appears on startup and at shutdown

A few months ago, I bought a macbook pro and it was doing fine. But recently, every time it starts, a blue screen appears for a split second then it goes to log- in. Then, every time I shutdown, it will also show up for a split second then shutdown. It doesn't affect the computer but I'm just wondering how to stop it.

I couldn't rember what time it started so, I shut down my computer and the blue screen appereed at 8:39:28. But went I turned it on, the blue screen did not show. So, I turnned it of and on again and no blue screen. I did it several times and now the blue screen isn't showing. But I will post the test that showed in the concel during 8:39, when it powered of blue, to the time I powed it on, when the blue screen did not show. If you need more, I will try to give it to you. I'll post again if it shows up again. Also I should edit out ethernet address too right?
Here's what its says:
8:38:07 PM kernel: I0Surface: buffer allocation size is zero
8:38:47 PM kernel: I0Surface: buffer allocation size is zero
8:39:28 PM mds: (Error) Server: ==== XPC handleXPCMessage XPC_ERROR_CONNECTION_INVALID
8:39:28 PM com.apple.launched.peruser.501: (com.apple.talagent.[236]) Exited: Killed: 9
2/19/12 8:39:28.145 PM
com.apple.launchd.peruser.501
([0x0-0x18018].com.apple.iTunesHelper[284]) Exited: Killed: 9
2/19/12 8:39:28.145 PM
com.apple.launchd.peruser.501
([0x0-0x13013].com.apple.AppleSpell[260]) Exited: Killed: 9
2/19/12 8:39:28.147 PM
com.apple.launchd.peruser.501
(com.apple.mdworker.pool.0[452]) Exited: Terminated: 15
2/19/12 8:39:28.203 PM
loginwindow
DEAD_PROCESS: 36 console
2/19/12 8:39:28.467 PM
shutdown
halt by ___________:
2/19/12 8:39:28.467 PM
shutdown
SHUTDOWN_TIME: 1329701968 466888
2/19/12 8:39:54.000 PM
bootlog
BOOT_TIME 1329701994 0
2/19/12 8:40:06.000 PM
kernel
PMAP: PCID enabled
2/19/12 8:40:06.000 PM
kernel
Darwin Kernel Version 11.3.0: Thu Jan 12 18:47:41 PST 2012; root:xnu-1699.24.23~1/RELEASE_X86_64
2/19/12 8:40:06.000 PM
kernel
vm_page_bootstrap: 986092 free pages and 54292 wired pages
2/19/12 8:40:06.000 PM
kernel
kext submap [0xffffff7f8072f000 - 0xffffff8000000000], kernel text [0xffffff8000200000 - 0xffffff800072f000]
2/19/12 8:40:06.000 PM
kernel
zone leak detection enabled
2/19/12 8:40:06.000 PM
kernel
standard timeslicing quantum is 10000 us
2/19/12 8:40:06.000 PM
kernel
mig_table_max_displ = 73
2/19/12 8:40:06.000 PM
kernel
TSC Deadline Timer supported and enabled
2/19/12 8:40:06.000 PM
kernel
AppleACPICPU: ProcessorId=1 LocalApicId=0 Enabled
2/19/12 8:40:06.000 PM
kernel
AppleACPICPU: ProcessorId=2 LocalApicId=2 Enabled
2/19/12 8:40:06.000 PM
kernel
AppleACPICPU: ProcessorId=3 LocalApicId=4 Enabled
2/19/12 8:40:06.000 PM
kernel
AppleACPICPU: ProcessorId=4 LocalApicId=6 Enabled
2/19/12 8:40:06.000 PM
kernel
AppleACPICPU: ProcessorId=5 LocalApicId=1 Enabled
2/19/12 8:40:06.000 PM
kernel
AppleACPICPU: ProcessorId=6 LocalApicId=3 Enabled
2/19/12 8:40:06.000 PM
kernel
AppleACPICPU: ProcessorId=7 LocalApicId=5 Enabled
2/19/12 8:40:06.000 PM
kernel
AppleACPICPU: ProcessorId=8 LocalApicId=7 Enabled
2/19/12 8:40:06.000 PM
kernel
calling mpo_policy_init for TMSafetyNet
2/19/12 8:40:06.000 PM
kernel
Security policy loaded: Safety net for Time Machine (TMSafetyNet)
2/19/12 8:40:06.000 PM
kernel
calling mpo_policy_init for Sandbox
2/19/12 8:40:06.000 PM
kernel
Security policy loaded: Seatbelt sandbox policy (Sandbox)
2/19/12 8:40:06.000 PM
kernel
calling mpo_policy_init for Quarantine
2/19/12 8:40:06.000 PM
kernel
Security policy loaded: Quarantine policy (Quarantine)
2/19/12 8:40:06.000 PM
kernel
Copyright (c) 1982, 1986, 1989, 1991, 1993
2/19/12 8:40:06.000 PM
kernel
The Regents of the University of California. All rights reserved.
2/19/12 8:40:06.000 PM
kernel
MAC Framework successfully initialized

IPad Air with iOS 8.02 freezes and blue screen appears. What should be done ? Why is this happening ?

IPad Air with iOS 8.02 freezes and blue screen appears. What should be done ? Why is this happening ?

If nothing else works, you might try this one. It has worked for many others ...
Use iTunes to do a reset to factory default condition. Always be sure to do your backups before fiddling with your iPad. You might do both the iCloud and the iTunes backup, just to be sure!
Back up and Restore your iOS Device with iCloud or iTunes
http://support.apple.com/kb/ht1766
iTunes: About iOS Backups
http://support.apple.com/kb/ht4946
Use iTunes to Restore your iOS Device to Factory Settings
http://support.apple.com/kb/ht1414
Various issues from many different users have been solved by this. I've lost count on how many have been helped by this, so far. But, it doesn't mean EVERYONE will be helped, but I've seen a whole lot. You can only try and see ...
iPad 2 and iOS 8.0.2 Problems
For all iPad 2 owners, this is an important solution for you! These problems result from long-term use, continuous upgrades, corrupted files and various glitches that happen over this long term use. You just need to get your iPad 2 back to FACTORY FRESH CONDITION to start out clean!
Here's one person's solution which will help a lot of iPad 2 users!
keithfrommariettaOct 12, 2014 3:25 PM Re: IPAD2 very slow after IOS 8 upgrade
Re: IPAD2 very slow after IOS 8 upgradein response to pacoKAS
SOLVED: IOS 8 Issues on iPad 2:
I just returned home from a visit to the Genius Bar. Like you and many others, when I upgraded my iPad 2 to IOS 8, it became practically unusable. It was VERY slow, lagged whenever trying to to do anything. Lots of screen freezes and apps spontaneously crashing. I was convinced that the processor on the iPad 2 just couldn't handle the new IOS and I went in to see about restoring to IOS 7.
Thankfully, I was hooked up with a very sharp guy at the bar. The problem is not with the OS, it is with it being an *upgraded* OS. He used the analogy of when you had an older Windows computer and how over time (and over upgrades), they just tended to get slower and slower because of all of the garbage that was carried forward in the upgrades. At those times (and if you've ever had a Windows computer, you get this), the only thing that would speed it up would be to wipe the machine and do a fresh install of the current OS and then reload your apps, and the viola, everything would be fast again. Well, it turns out that IOS can suffer the same problems.
THE FIX: FIRST, be sure you have a current iCloud backup of your device. Connect your iPad to a computer that has a clean fresh copy of IOS 8 on iTunes (this is best done with a computer other than the one that you sync your device to because you DO NOT want to restore it from a back up just yet). Ideally, if you do this at an Apple store you'll be assured of the right version there and someone to answer any questions you might have along the way. You then hold the power and home button down to hard-reset the device and continue to hold them down until it reboots into recovery mode. You then follow the instructions on the computer to reinstall the OS on the device (which wipes everything from it and then reinstalls a clean copy of it). Once this is done (which only takes about 15 minutes), your device will reboot and ask you to set it up. Answer the questions about language, location, etc. and continue until it asks you to log into your iTunes account. Once you do that, it will ask if you want to either 1) Set it up as a new device, 2) Restore from iCloud, or 3) Restore from iTunes. Choose (2), restore from iCloud. This will ensure that it brings down "clean" copies of all of your apps and preferences rather than the potentially corrupted ones that might reside in your iTunes backup. That's it! It will take a few hours depending on how much data and apps you have, but I am happy to report that my iPad 2 is now running IOS 8 and it's running as fast as it ever did when it was brand new!
To sum it up, this process 1) Wipes your device and the garbage causing your problems, 2) Loads a clean and bug-free version of IOS 8 to your device, and 3) restores your apps and data so that it looks just like it did before the wipe, with the exception that it works now! :-)
Note also that by following this process you don't have to go through the painful and laborious process of reloading all of your apps, data and/or settings. iCloud takes care of all of that for you.

In windows 8.1 64 bit , brightness and sleepmode not working

I have the 15-g009AX notebook via flipkart . After installation of windows 8.1 64 bit brightness and sleepmode and hybernate mode not working
Please send the solution.
From.,
Madhu

Hello @vmsbobj ,
Welcome to the HP Forums!
I understand after installing Windows 8.1 you are no longer able to use the brightness, hibernate or sleep mode options.
I cannot seem to find the exact model you've listed. The drivers found here should do the trick for you though: HP 15-g030au Notebook PC Drivers. What you're looking for is the HP System Event Utility software found in the Software - Solutions section.
If you can respond with the product number for the notebook I may be able to give a better answer. For information on finding your product and model numbers click here: How Do I Find My Model Number or Product Number?
Let me know if this utility resolves the issue.
Please click the "Kudos, Thumbs Up" at the bottom of this post if you want to say "Thanks" for helping!
Please click "Accept as Solution" if you feel my post solved your issue, it will help others find the solution.
The Great Deku Tree
I work on behalf of HP.

HT4177 My mackbook pro suddenly freezed and when I swiched off and on again, a grey screen appeared with an apple logo then a loading circle underneath, and after a few hours, a blue screen appeared. What shall I do with this?

My mackbook pro suddenly freezed and when I swiched off and on again, a grey screen appeared with an apple logo then a loading circle underneath, and after a few hours, a blue screen appeared. What shall I do with this?

What operating system version, and do you have any backups of your data off the machine? TimeMachine? Option Key bootable clones? Storage? DVD's?
A reinstall of the operating system may be in order as a last resort, so if any of these steps on these links get you into the machine, make sure to backup your personal data (Music, Pictures, Documents, Movies) off the machine to a non-encrypted powered external drive regular storage drive (not TimeMachine as it might be corrupted too) and disconnect as soon as possible.
Good Luck and report back all what you tried.
Also report what change occured before this tragedy happened, was there a Software Update? A EFI firmware update? Etc.
https://support.apple.com/kb/TS3148
more:
https://support.apple.com/kb/TS2570
http://docs.info.apple.com/article.html?path=Mac/10.6/en/8963.html
To boot off the 10.6 install disk, hold c or option key while the disk is in the machine.
To boot into 10.7 Recvoery mode, hold the command and r keys down while booting.
To use Safe mode, hold down the Shift Key while booting.
Other assistance
https://support.apple.com/kb/HT3964
https://support.apple.com/kb/HT1379
https://support.apple.com/kb/ht1782
https://support.apple.com/kb/HT1564

"Unexpected Kernel Mode Trap (Wdf01000.sys)" and a Blue Screen appearing frequently on my Windows 8.1 (64-bit) laptop and laptop restarting all of a sudden.

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