As a side topic, to what extant can progs such as MBAM (just ran it myself) be used in place of "full" AV programs?
I have installed Kaspersky on every laptop and desktop I have built for the last few years, and recommended it to many more, and while it doesn't suffer from the issues seen on Symantec's stuff, it slows down the startup on my Thinkpad laptop massively.
Normally I wouldn't bother with AV on a travelling laptop which is used mostly for flight planning and a bit of email/www, but recently a nunch of websites have been infected including some pilot sites.