Locking Up On Shutdown

Sorry I've been real busy

Your crash was a memory corruption. Either it is bad physical memory or bad driver memory. Start off by running memtest and see if it finds any errors

Memtest86 - Run for 7-8 passes - RAM - Test with Memtest86+


BSOD BUGCHECK SUMMARY

Code:

Built by: 7601.17592.amd64fre.win7sp1_gdr.110408-1631
Debug session time: Sat Jul  9 19:55:05.233 2011 (UTC - 4:00)
System Uptime: 0 days 4:07:15.027
Probably caused by : memory_corruption ( nt!MiBadShareCount+4c )
BUGCHECK_STR:  0x4E_99
PROCESS_NAME:  firefox.exe
FAILURE_BUCKET_ID:  X64_0x4E_99_nt!MiBadShareCount+4c
BiosReleaseDate = 06/21/2010
SystemManufacturer = System manufacturer
SystemProductName = System Product Name
CPUID:        "Intel(R) Core(TM)2 Quad CPU    Q8300  @ 2.50GHz"
MaxSpeed:     2500
CurrentSpeed: 2805
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨``
  

You use daemon tools...

Please remove any CD virtualization programs such as Daemon Tools and Alcohol 120%. They use a driver, found in your dmp, sptd.sys, that is notorious for causing BSODs. Use this SPTD uninstaller when you're done: DuplexSecure - Downloads
You can use MagicDisc as an alternative.

Your dumps are inconclusive even though some are Verifier enabled...

However I think you might also have a problem with your .NET4.0 environment. It wouldn't hurt to check for newest at microsoft.com. One of your dumps mentions this.

BTW your uploads are fine. We'll get to the bottom of this..

If you haven't done so already, please check if can replicate the bsod in Safe mode?

Post back results please + on new bsod's: full info incl logs.

I dont use daemon tools or any mounting program. I wonder if steam uses a mounting program to install games? Also it seems that if I uninstall too many programs and then restart that causes a bsod. I will try this in safe mode.

Edit: SPTD setup says no SPTD was detected. Also added an attachment for the bsod from my previous post.

Mmmm you're right, I don't see sptd anymore. Maybe my mistake.

Your last dump (from the 27th) would suspect Steam or steam related stuff. That process is mentioned both in the dump as in your log as faulting app.

As a test, you could de-install and test to see.

However , I still think something in your .NET environment is the most likely candidate. Have you been able to update or check that? Please post back your actions and results?

Finally, your logs also show you had trouble with Windows Update. Sometimes crashed or incomplete updates also cause instability. Please go to your Maintenance center and check that all updates have successfully installed. Finish them manually if you have to.

Yeah, good idea...

OK... sounds plausible, have you tried it?