To Fix Your Computer From This NTAuthority/System

[PoisonXA]

If You Unwantingly Have In Your Computer The Following:
MSBlast.exe
lolx.exe
worm.exe

These are just a few of the reasons u are getting the
Shutdown sequance your best bet will be as followed

Go On SafeMode With Networking

Search For MSBlast.exe , lolx.exe , worm.exe delete all
that u can find.

Then Go To Link -
http://download.microsoft.com/download/9/8/b/98bcfad8-
afbc-458f-aaee-b7a52a983f01/WindowsXP-KB823980-x86-ENU.exe

If This Doesnt Work Wich I Know It Probably Wont Do As
Followed:

Hit Ctrl Alt Delete On Ur Normal Boot Up look For
MSBlast.exe or msblast.exe Right Click On It And Go To
End Process Tree

Then Go to Start/Run Type In regedit
On regedit Go To Edit/ Find Next Type In MSBlast Then hit
find.
Delete That Wich Was Found Then Hit F3 And delete that
one also Until it says it doesnt find anymore.

Then Go To Link -
http://download.microsoft.com/download/9/8/b/98bcfad8-
afbc-458f-aaee-b7a52a983f01/WindowsXP-KB823980-x86-ENU.exe

And Run That Download. Restart Your Computer. And Problem
Should Be Resolved