Lately my machine freezes often for 10 - 50 seconds sometimes it would freeze but I can still move between windows but it wont do anything other times it would freeze to such a degree that I cannot move my mouse curser.
I have no idea what this can be I noticed it after that last "major" update.
This is recently from my event viewer, but again I am not entirely sure what I am looking at although these time stamps correlate to the freezes.
Are you using a Nvidia graphics card?