I upgraded today and this is the surprice, yesterday was not doing it, today I used a micro sd usb device just to transfer 2 files I needed over 1 gb, and I removed it now. I read around the web who had same issue with audio tests, etc etc but nothing to do. I have Sp3 in the docking 3 right now. Please help, with Cpu at 33% and more all the time I need to shut down the system because not able the fan to handle this bug..... I can't believe, no luck yet with Sp3.