Registry Error STOP 51 BSOD

Scott Thompson
Scott Thompson used Ask the Experts™
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Windows 7 Panasonic Toughbook Tablet having BSOD issues once logged into Windows.  I have turned on Diagnostic mode on startup, but the BSOD still happens after logged into Windows.  Safe Mode with Networking works correctly.  There is NO restore points (of course).  From what I have determined, it is an issue somewhere in the registry pointing to a bad driver or program, but I cannot track it down.  I need some assistance 'walking the stack'.  Thank you.
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noxchoIT Product Manager
Top Expert 2009

Commented:
Did you do any registry changes before this problem happened first time?
If not then you need to test the memory and hard drive of the device for errors. It could be that the sector where the registry file is located has problems.

Also there are cases where anitvirus has caused this problem.
Scott ThompsonComputer Technician / Owner

Author

Commented:
I have chkdsk'd the hard drive and ran memtest 86+, no errors on either test.  I will check for an Anti-Virus, but this is a customer's computer.  I do not believe that there are any registry changes that they would have done to it.  They use them for specific purposes, and so installing new programs is not common.
IT Product Manager
Top Expert 2009
Commented:
.NET for example can try to delete some registry record as well. Malwarebytes or antivirus software sometimes think they are cleverer than Windows and do registry cleanup. Ask the customer what exact did they do before the problem started.
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Top Expert 2013

Commented:
Scott ThompsonComputer Technician / Owner

Author

Commented:
I am unable to ask the customer as the contact person is not the person that uses the computer.  Unfortunately, the main user is bounced around (shared computer).  I will run SFC /Scannow and see what the results are.
Scott ThompsonComputer Technician / Owner

Author

Commented:
SFC /Scannow came back with nothing.  I honestly don't know what fixed it, but I left it on the logon screen without booting in and it eventually had an update to install and shut down with.  After this processed, the system booted in successfully.  It was an update to the .NET framework, so maybe something wasn't playing nice.  Thanks for your help!

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