BSOD BCCode 50. freezes in normal mode, works fine in safe mode

[gussie1966]

laptop has been randomly freezing. cursor disappears no keyboard function. only thing to do is manual shutdown.

Now getting a BSOD error 50.

any help?

 

[Arc]

BugCheck 50, {fffff80040f9e3b0, 1, fffff80000b9a1aa, 5}

*** WARNING: Unable to verify timestamp for ntoskrnl.exe
*** ERROR: Module load completed but symbols could not be loaded for ntoskrnl.exe

Could not read faulting driver name
Probably caused by : ntoskrnl.exe ( nt_fffff80000b95000+51aa )

Followup: MachineOwner
---------

Your crash dumps are not showing any finite probable cause. In such a situation, it is better to enable Driver Verifier to monitor the drivers.
Driver Verifier - Enable and Disable
Run Driver Verifier for 24 hours or the occurrence of the next crash, whichever is earlier.

   Information

Why Driver Verifier:
It puts a stress on the drivers, ans so it makes the unstable drivers crash. Hopefully the driver that crashes is recorded in the memory dump.

How Can we know that DV is enabled:
It will make the system bit of slow, laggy.

   Warning

Before enabling DV, make it sure that you have earlier System restore points made in your computer. You can check it easily by using CCleaner looking at Tools > System Restore.

If there is no points, make a System Restore Point manually before enabling DV.

   Tip

• If you fail to get on the Desktop because of DV, Boot into Advanced Boot Options > Safe mode. Disable DV there. Now boot normally again, and try following the instruction of enabling DV again.
• If you cannot boot in Safe mode too, do a System Restore to a point you made earlier.

Let us know the results, with the subsequent crash dumps, if any.

 

[gussie1966]

ok will run drive verifier after creating a back up of my data. keeps crashing while trying to image

 

[gussie1966]

I ran verifier. BSOD & laptop freezing.

disabled verifier. now SF diagnostic tool will not work. immediately after clicking run as administrator get error message it has stopped working. Problem event Name: CLR20r3

deleted and reinstalled SF diagnostic tool. same result

 

[Arc]

Try the option two of BSOD posting instructions.

 

[gussie1966]

Here are the SF debug files

also ran Memtest86

11 passes no errors

 

[Arc]

Install Service pack 1 and all other windows updates. Otherwise the system will remain vulnerable to threats.

[COLOR=Red]Windows 7 Kernel Version 7600 MP[/COLOR] (2 procs) Free x64
Product: WinNt, suite: TerminalServer SingleUserTS Personal
Built by: 7600.17273.amd64fre.win7_gdr.130318-1532

Learn how to install Windows 7 Service Pack 1 (SP1)
Service Pack and Update Center - Microsoft Windows

Report back for any further BSOD.

 

[gussie1966]

Tried to update to SP1

It gets as far as rebooting then to a screen that has a grey box in left hand corner that says "Loading personal settings"

then BSOD error 50 ntoskrnl.exe

then loops to the same thing again

 

[Arc]

Boot into http://www.sevenforums.com/tutorials/666-advanced-boot-options.html > Safe mode with networking. Then update to SP1.

 

[gussie1966]

same problem in safe mode

 

[Arc]

If you get BSODs in safe mode, it is most probably a hardware issue. That means RAM,CPU, GPU, PSU motherboard or any other PnP hardware attached to the computer.

Test your RAM modules for possible errors.
How to Test and Diagnose RAM Issues with Memtest86+
Run memtest for at least 8 passes, preferably overnight.
If it start showing errors/red lines, stop testing. A single error is enough to determine that something is going bad there.

Stress test the CPU.
Hardware - Stress Test With Prime95

For some good reasons you cannot test any other hardware there. You cannot test the GPU in safe mode, too.

Let us know the results.

 

[gussie1966]

ran Memtest86+.

11 passes

no errors