Driver_irql_not_less_or_equal Stop 0x000000d1

[Airfla]

Hi. This is my first post. My computer is crashing with the referenced BSOD. I know many others have had this problem and from reading the Forum there apparently are many possible causes. The full STOP line is:

STOP 0x000000D1 (0x71A5DF52, 0x00000002, 0x00000008, 0x71A5DF32)

I am running Windows Media Center SP2 on an HP m7580n. I haven't installed any new hardware or software drivers. I have run both anti-virus and anti-spyware programs and the results have been clean. The problem occurs only about once a day. There doesn't appear to be any particular triggering event. Because of that, an uneducated guess would suggest a possible power supply or memory problem. But, I could be totally off base.

After the crash, there is no problem rebooting.

Minidumps attached. I have no experience reading minidumps. Any help in diagnosing the problem would be greatly appreciated.

 

[peterdiva]

Outpost Firewall is the problem. Your version is dated 2002. See HERE for the same problem.

BugCheck 100000D1, {71a5df52, 2, 8, 71a5df52}
PROCESS_NAME: svchost.exe
Probably caused by : Unknown_Image ( INVALID_CONTEXT )

 

[Airfla]

Thank you very much. Obviously I'll have to replace my firewall.