shut-down

I use google toolkit to translate different documents like subtitles and one day I was in the middle of translating a line when it started to shut me out of editing it. After pressing Ctrl or windows key it's ok for a few seconds and then it shuts me out again. This applies to the rest of the...

win7 pro 64-bit, windows security essentials, newest vdefs. windows updates current. drivers current. I get these weird random system shut downs (NOT a BSOD, more like a power failure), sometimes I'm watching a video, sometimes I'm not even on the computer at all. Sometimes it happen after 20...