Could it be to do with the malicious software removal tool update that tooke place on the 8th feb? Loooking through the feed it appears everyone had the same update on the 8th feb and when i looked at the properties of feeds.exe it said it was created on the 8th of february, the same day i updated my computer. I'm assuming its maybe a bug in the code. Fingers crossed.
PS I am on an NVidia driver.