I'm getting reports of a glitch hitting Kaspersky users.
The issue appears to be related to an update. Affected users see a message that reads "previous application launch failed" and then the system crashes. Endless reboots seem to be a symptom that some are experiencing.
A fix is promised by the good people at Kaspersky for later today.
Uh-oh ... we've got a few PCs here hit by the problem. However, it looks like rebooting and re-running the update fixes the issue.