Blue screen -- Help Please ! (Avira crashes, HJT log available)

[sinko]

Please help.

Blue screen shows up many times.

Even in Safe mode blue screen after I start Avira or even when I first logged on this board.

Now writing from Safe Mode with Networking.

Avira crashed, does not let me scan the system for viruses.

One of blue screens said:
----------------
PFN_LIST_CORRUPT
STOP 0x000000040(....
Begin dump of physical memory....
--------------------

Only was able to get HJT log file, and deleted two )4 inputs that did not make sense to me, you will see which once when comparing to second HJT I am attaching after deleting two O4 entries.

Please analyze HJT logs and let me know how to fix this blue screen problem, it appears that major virus has attacked my computer.

Please help, I need urgent help. Will be checking this site regularly hoping you can help me as I am very concerned.

Thanks a lot.