New
#21
Well I don't know about the CPU I suppose it cold be something wrong with it but apart from stress testing it and as you say it crashes under load that isn't an option.
Look I know this sounds over simplistic but if you can get into safe mode run these
https://www.sevenforums.com/tutorials/1538-sfc-scannow-command-system-file-checker.html
https://www.sevenforums.com/tutorials/433-disk-check.html < if necessary include the /f and /r in the command line as per Option2