need some advice please. im running windows 7 pre activated ive been getting updates ok. but there is 1 that ive not installed. it is ( windows malicious software removal tool july 2013 kb 890830 ) is it safe to install or will it come back and bite me on the arse. plus is there any updates that i should be aware of thanks. amd a6 -5400k apu with radeon hd graphics 3.60 ghz 32 bit windows 7 home premium.