I have a desktop PC which is about 4 years old and I upgraded it to Windows 10 as soon as it was available (from retail version of Windows 7 home). I have had no problems since the upgrade until very recently. However in the last month or so, Windows has started freezing randomly after about 20-40 minutes use. There is no obvious pattern of use which triggers the freeze and it's rather odd. It's not a BSOD, it's just that it all becomes unresponsive and greyed out (the mouse cursor still moves). CTRL-ALT-DEL doesn't work, nor anything else other than holding down the power button until the PC switches off.
I'm no expert, so please let me know what the best way is to diagnose and fix what is going on. I have run the program memtest, as well as avast and malwarebytes, but they have all come up clean.
I suspect it has something to do with the windows updates installed around 6 March as I think it was fine before then. KB3139907, KB3140741 and/or KB3140743 specifically, which I can't uninstall from windows update. Does that seem plausible? And if so, how can I fix it?
Thanks for your help. Happy to provide any info which might be useful (I have attached the SysnativeFileCollectionApp.zip file in case it helps)
Edited by kavb, 28 March 2016 - 03:53 PM.