Ron says ... Do not download any security updates from Microsoft until they can figure this out. Keep yourself in the loop. The Blue Screen of Death virtually guarantees your computer is trash.
Windows Patch Leaves XP Users With Blue Screen of Death - PCWorld: "Tuesday's security updates from Microsoft have crippled Windows XP PCs with the notorious Blue Screen of Death (BSOD), users have reported on the company's support forum.
Complaints began early yesterday, and gained momentum throughout the day."