Here is what error message is got : A problem has been detected and windows has been shut down to prevent damage to your computer. IRQL_NOT_LESS_OR_EQUAL (then the three standard help lines) -If this is the... -Check to make ... -If problem persists... Technical information: ***Stop:0x0000000A(0x0280805,0x0000001C,0x00000001,0x80502002) This is somehow related to this error message I got today starting the windows: Name:ATKKBService.exe The instruction at "0x77e76eb7" referenced memory at "0x0000001" could not be "read" I am using Windows XP SP2,with Asus PK5 motherboard. Yesterday I was using my PC completely normal and today this errors poped out. Last Stop BSOD happened 5 days ago,and it involved nvidia driver part,which later I fixed reinstalling the new driver posted on official Nvidia site. How to fix this? Problem is that this Stop shows up randomly.Just before I posted this,15 minutes ticked off,and I got the Stop.Now it went about 30minutes+.I included minidump report.Thank you in advance!