Windows 7 64 Bit Pro Explorer (explorer.exe) keeps crashing and restarting randomly. This happens several times a day and its quite annoying. Sometimes happens when I search for files, sometimes when I click on an Program Icon, Sometimes when I open a folder and sometimes for no apparent reason. My Install was a Clean Install and I have had this issues from day 1. I have tried several “solutions” including Copying Explorer.exe from the Wow64 folder to System32 folder, fixing the SQM issue, Changing registry settings, Running sfc, Defragging my HDs Scanning for Viruses and Malware (using Multiple fully updated AV programs). Updating Windows and Drivers etc. etc. Nothing seems to work. I don't want to reinstall the entire OS if I will have these problems again. Please Help! Thanks. K. Chahal

A not-dissimilar situation has shown up in a couple different places, related to the nVidia M series video adapters. Apparently they have a mechanism whereby they flip in and out of high-performance mode depending on what's being demanded by currently running software. The problem is that in certain situations this switch can happen several times within a few milliseconds and create problems for Windows. (I've only seen this come up in relation to 64-bit versions.) The fix, copied from an OCZ forum, came courtesy of Winston Smith: Update Driver Download and install the latest NVIDIA driver from here . RivaTuner Download and install RivaTuner from here . Magic Open RivaTuner and switch to the "Power User" tab. Expand the "RivaTuner\NVIDIA\Overclocking" Tree. Set "EnablePerfLevelForcing" to 1. Switch to the "Main" tab. Under "Driver settings" click on the small arrow left to "Customize..." and choose the first icon "System settings". Set "Force constant performance level" to either "low power 3D" (suffient for 2D audio work) or "performance 3D" (used for 3D gaming). Click OK and let the computer restart. I would start with step 1, update the driver, then if the problem persists download RivaTuner and continue from there. This even handles a problem of Windows 7 x64 (or Vista x64) freezing completely under certain circumstances on the MacBook.

Hello André, thank you very much for your quick answer. I've followed your instructions and ... success!! at the moment no new crashes i'll keep you informed in case of new issues. thank you again best regards Antonio

Hi Antonio, I have checked the dumps and the Explroer crashes while displaying the Tooltips in Systray: explorer!CTrayNotify::_ShowInfoTip+df This happen to a few people here. Please start the command prompt with admin rights [1] and run sfc [2]: sfc.exe /scannow Is it able to find and repair broken files? best regards Amdré [1] http://windows.microsoft.com/en-US/windows7/How-do-I-run-an-application-once-with-a-full-administrator-access-token [2] http://support.microsoft.com/kb/929833 "A programmer is just a tool which converts caffeine into code" CLIP- Stellvertreter http://www.winvistaside.de/

Hello, i've win7 pro 64 bit and the same problem with crashes of Explorer.exe i've followed the insturcions above and generate a couple of dmp files. http://cid-9a0a5a6e337b1986.office.live.com/self.aspx/.Public/explorer.exe.5632.dmp http://cid-9a0a5a6e337b1986.office.live.com/self.aspx/.Public/explorer.exe.1432.dmp could you pls help? Thank you in advance Antonio

Windows 7 64 Bit Pro Explorer (explorer.exe) keeps crashing and restarting randomly.

Anonymous

Windows 7 64 Bit Pro Explorer (explorer.exe) keeps crashing and restarting randomly. This happens several times a day and its quite annoying. Sometimes happens when I search for files, sometimes when I click on an Program Icon, Sometimes when I open a folder and sometimes for no apparent reason.

My Install was a Clean Install and I have had this issues from day 1.

I have tried several “solutions” including

Copying Explorer.exe from the Wow64 folder to System32 folder,
fixing the SQM issue,
Changing registry settings,
Running sfc,
Defragging my HDs
Scanning for Viruses and Malware (using Multiple fully updated AV programs).
Updating Windows and Drivers
etc. etc.

Nothing seems to work. I don't want to reinstall the entire OS if I will have these problems again. Please Help!

Thanks.

K. Chahal

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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Answer accepted by question author

Anonymous

You have a Heap Corruption in Shell32.dll

Please run ShellExView and disable all Shellextension which are NOT from Micrososoft. Does the crash still occur? If not, enable the extension successively until you find the one which crahes the explorer.

André

"A programmer is just a tool which converts caffeine into code" CLIP- Stellvertreter http://www.winvistaside.de/

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Answer accepted by question author

Anonymous

A not-dissimilar situation has shown up in a couple different places, related to the nVidia M series video adapters. Apparently they have a mechanism whereby they flip in and out of high-performance mode depending on what's being demanded by currently running software. The problem is that in certain situations this switch can happen several times within a few milliseconds and create problems for Windows. (I've only seen this come up in relation to 64-bit versions.) The fix, copied from an OCZ forum, came courtesy of Winston Smith:

Update Driver

Download and install the latest NVIDIA driver from here .

RivaTuner

Download and install RivaTuner from here .

Magic

Open RivaTuner and switch to the "Power User" tab.
Expand the "RivaTuner\NVIDIA\Overclocking" Tree.
Set "EnablePerfLevelForcing" to 1.
Switch to the "Main" tab.
Under "Driver settings" click on the small arrow left to "Customize..." and choose the first icon "System settings".
Set "Force constant performance level" to either "low power 3D" (suffient for 2D audio work) or "performance 3D" (used for 3D gaming).
Click OK and let the computer restart.

I would start with step 1, update the driver, then if the problem persists download RivaTuner and continue from there.

This even handles a problem of Windows 7 x64 (or Vista x64) freezing completely under certain circumstances on the MacBook.

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72 additional answers

Anonymous

2010-09-16T15:56:59+00:00

Hello André,

thank you very much for your quick answer.

I've followed your instructions and ... success!!

at the moment no new crashes

i'll keep you informed in case of new issues.

thank you again

best regards

Antonio
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Anonymous

2010-09-16T15:31:08+00:00

Hi Antonio,

I have checked the dumps and the Explroer crashes while displaying the Tooltips in Systray:

explorer!CTrayNotify::_ShowInfoTip+df

This happen to a few people here.

Please start the command prompt with admin rights [1] and run sfc [2]:

sfc.exe /scannow

Is it able to find and repair broken files?

best regards

Amdré

[1] http://windows.microsoft.com/en-US/windows7/How-do-I-run-an-application-once-with-a-full-administrator-access-token

[2] http://support.microsoft.com/kb/929833

"A programmer is just a tool which converts caffeine into code" CLIP- Stellvertreter http://www.winvistaside.de/
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Anonymous

2010-09-16T15:24:49+00:00

Hello,

i've win7 pro 64 bit and the same problem with crashes of Explorer.exe

i've followed the insturcions above and generate a couple of dmp files.

http://cid-9a0a5a6e337b1986.office.live.com/self.aspx/.Public/explorer.exe.5632.dmp

http://cid-9a0a5a6e337b1986.office.live.com/self.aspx/.Public/explorer.exe.1432.dmp

could you pls help?

Thank you in advance

Antonio
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