ntoskrnl.exe BSOD when logging out

[ch3mn3y]

For 2, maybe 3, weeks I have this BSOD.
At the beginning I thought that it's problem with shutting down the OS, but than when shut or rebooted from login screen, it's all fine.
So yesterday I downloaded Development Kit to read it, but there is nothing I understand (except what probably caused it).

ntoskrnl.exe BSOD - Pastebin.com
[DEL]I have a problem with Your tool. It says that all went fine and zip is saved to desktop, but there is no zip...[/DEL]
OK. It's saving the file to C:\Users\Administrator\Desktop when I have desktop folder on different drive...
View attachment 68681

Seems that Windows thinks/knows that problem is with ntoskrnl.exe, but it doesn't ring any bell...
Internet says that it can be:

• bad RAM,
• RAM timing.

RAM is as it was set by factory, so timing is unchanged and Dell's Diagnostic and Ubuntu LiveCD memtest didn't found any problems with RAM.
Additionally I had a problem with WiFi and coz of that rebooted into Safe Mode with Networking and there logging out was fine. No BSOD, no nothing. So Memory looks fine or at least it's not a reason for BSOD.

Coz of that I think it had to be and app or driver. However how to find what? Anyone has an idea?

 

[axe0]

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