Hi, I'm getting the following crash: DRIVER_IRQL_NOT_LESS_OR_EQUAL The computer has rebooted from a bugcheck. The bugcheck was: 0x100000d1 0x100000d1 with 0XFFFF1738 0X00000002 0X00000001 0X742FF0F. I haven't really used this computer since Jan 2010 and didn't use it then a lot either. The other day I installed the Microsoft updates and Norton antivirus updates because I was going to start using this computer again. But it keeps crashing. It crashes at boot up, just after boot up or during shut down. It will not stay up for long. It boots to safemode. Mini-dump is attached. I ran Memtest-86 V3.5 (booted that from CD) and it found no memory errors. Can you point me in the right direction to fix? Thank you very much in advance.