A
A Baffled User
Yikes! Okay, I've got it.
Brian Tillman said:Your AV program updates itself, probably silently, every day. That means
it can start behaving differently at any time and you'll never know it
until it causes problems. That's why the McAfee update of a couple of
weeks ago killed tens of thousands of PCs all over the world - they
updated their AV program and messed up with the detection strings, causing
the program to quarantine SVCHOST.EXE, an essential WIndows program,
bringing all those machines down.