Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: Random Crash when doing nothing in particular

10 Mar 2011   #1

Windows 7 Ultimate 64bit
Random Crash when doing nothing in particular


I registered on this forum to see if I could get some help with my machine as it is really frustrating me. The warranty has ran out, and my computer skills are mediocre so hopefully some computer wizards can give me some pointers.

Anyways, I get this bluescreen message when in the OS. Usually I dont do anything special. I have this minidump that Im attaching.

Any suggestions what I could be dealing with? I have ran memtest for like 20 passes with no single errors...


My System SpecsSystem Spec
10 Mar 2011   #2
Microsoft MVP


No specific cause is pointed out by this single memory dump. Please provide us with the info listed here:

Please visit Windows Update and get all updates for your system. Then select the Important Updates and get Service Pack 1.

- Please update these drivers from the device manufacturer's website - or uninstall/remove them from your system. Reference links included below.
- DO NOT use Windows Update or the Update Drivers function of Device Manager.
- Please feel free to post back about any drivers that you are having difficulty locating.
- Windows Update exceptions may be noted below for Windows drivers:

iaStorV.sys       Wed Apr 08 12:57:17 2009 (49DCD76D)
amdxata.sys       Tue May 19 13:56:59 2009 (4A12F2EB)
hpdskflt.sys      Fri Jul 16 11:02:38 2010 (4C40748E)
dump_iaStorV.sys  Wed Apr 08 12:57:17 2009 (49DCD76D)
ElbyCDIO.sys      Thu Dec 16 17:58:13 2010 (4D0A9985)
SynTP.sys         Tue Oct 20 21:46:35 2009 (4ADE67FB)
atikmpag.sys      Tue Mar 02 22:07:33 2010 (4B8DD275)
AtiHdmi.sys       Thu Jan 28 20:03:36 2010 (4B6233E8)
atipmdag.sys      Tue Mar 02 22:47:08 2010 (4B8DDBBC)
Accelerometer.sys Fri Jul 16 11:02:38 2010 (4C40748E)
NETw5s64.sys      Wed Jan 13 11:37:13 2010 (4B4DF6B9)
L1C62x64.sys      Wed Apr 01 01:09:17 2009 (49D2F6FD)
HpqKbFiltr.sys    Wed Apr 29 09:48:30 2009 (49F85AAE)
stwrt64.sys       Tue Oct 20 11:42:09 2009 (4ADDDA51)
acpials.sys       Mon Jul 13 20:00:24 2009 (4A5BCA98)
WibuKey64.sys     Thu Dec 03 12:17:38 2009 (4B17F2B2)
hiber_iaStorV.sys Wed Apr 08 12:57:17 2009 (49DCD76D)
hiber_dumpfve.sys Mon Jul 13 19:21:51 2009 (4A5BC18F)
While waiting for a reply, please run Driver Verifier according to these instructions:
Using Driver Verifier is an iffy proposition. Most times it'll crash and it'll tell you what the driver is. But sometimes it'll crash and won't tell you the driver. Other times it'll crash before you can log in to Windows. If you can't get to Safe Mode, then you'll have to resort to offline editing of the registry to disable Driver Verifier.

So, I'd suggest that you first backup your stuff and then make sure you've got access to another computer so you can contact us if problems arise. Then make a System Restore point (so you can restore the system using the Vista/Win7 Startup Repair feature).

Then, here's the procedure:
- Go to Start and type in "verifier" (without the quotes) and press Enter
- Select "Create custom settings (for code developers)" and click "Next"
- Select "Select individual settings from a full list" and click "Next"
- Select everything EXCEPT FOR "Low Resource Simulation" and click "Next"
NOTE: You can use Low Resource Simulation if you'd like. From my limited experimentation it makes the BSOD's come faster.
- Select "Select driver names from a list" and click "Next"
Then select all drivers NOT provided by Microsoft and click "Next"
- Select "Finish" on the next page.

Reboot the system and wait for it to crash to the Blue Screen. Continue to use your system normally, and if you know what causes the crash, do that repeatedly. The objective here is to get the system to crash because Driver Verifier is stressing the drivers out. If it doesn't crash for you, then let it run for at least 36 hours of continuous operation (an estimate on my part).

Reboot into Windows (after the crash) and turn off Driver Verifier by going back in and selecting "Delete existing settings" on the first page, then locate and zip up the memory dump file and upload it with your next post.

If you can't get into Windows because it crashes too soon, try it in Safe Mode.
If you can't get into Safe Mode, try using System Restore from your installation DVD to set the system back to the previous restore point that you created.

If that doesn't work, post back and we'll have to see about fixing the registry entry off-line:
Delete these registry keys (works in XP, Vista, Win7):
        HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management\VerifyDrivers
        HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management\VerifyDriverLevel
More info on this at this link: Using Driver Verifier to identify issues with Windows drivers for advanced users

Built by: 7600.16695.amd64fre.win7_gdr.101026-1503
Debug session time: Wed Mar  9 14:04:50.448 2011 (UTC - 5:00)
System Uptime: 0 days 7:48:34.618
Probably caused by : memory_corruption ( nt!MiBadShareCount+4c )
FAILURE_BUCKET_ID:  X64_0x4E_99_nt!MiBadShareCount+4c
Bugcheck code 0000004E
Arguments 00000000`00000099 00000000`0036043e 00000000`00000000 00000000`003603be
BiosVersion = F.2B
BiosReleaseDate = 10/12/2010
SystemManufacturer = Hewlett-Packard
SystemProductName = HP Envy 15 Notebook PC
My System SpecsSystem Spec

 Random Crash when doing nothing in particular

Thread Tools

Similar help and support threads
Thread Forum
PC Random Crash
So i was playing a game and then my pc just froze and restarted
BSOD Help and Support
Random Crash ci.dll
I just recovered my system for the second time due to a CI.DLL crash. This has happened once in the past as well and really took me awhile to fix. Usually after this happens, my RAM shows errors for a day, but within a day memtest no longer shows memory errors. I have included the dumps and...
BSOD Help and Support
very very random crash during random times...
This is very weird! I had window 7 for about 6 month and it never did this until recently. Either when computer is idle or playing game, or typing up a paper, OR watching a movie, it will very randomly freeze and sound of movie i was watching will all get very slow motion wise. For example, if...
BSOD Help and Support
Win 7 random crash
Hi all i have a problem :cry: i had old MB (MSI) and system randomly (1hour to weeek periode) crashed several times, no reason now i claimed new one from asus, system is good, but randomly (1 month maybe 2 is periode) is crashing too, hmm no big deal BUT i was rendering static image in 3ds...
BSOD Help and Support
Random Crash
I am having similar problems to others within this forum. I have random crashes that include the following. Firefox 3.5 - running Pandora radio, computer locks and sound loops continuously - I am forced to hard stop the computer. iTunes - same problem as above. The firefox and itune problem...
BSOD Help and Support

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

й Designer Media Ltd

All times are GMT -5. The time now is 15:07.
Twitter Facebook Google+