Symantec antivirus software update crashes some PCs

An update earlier this week to Symantec Endpoint Protection 12.1 antivirus software for businesses caused some Windows XP-based computers to crash repeatedly with a "blue screen of death," the company revealed on its Web site.

"This whole episode is a joke, had the issue been a conflict with a random device driver then I could maybe slightly more sympathetic," the customer said. "But for it to conflict with its own Symantec related drivers and cause this issue is a total farce. Who tested it before release? Was it even tested?"