Hi. I had fresh clean install of Windows 10 Pro in MBR scheme . I want to know what caused this. Task manager and event viewer was not responding and some of the applications was not responding too. I was clicking and nothing happening. It was related to hardware or software? Disk was formatted due to MBR partition. My disk is Samsung Evo 250 GB , and 2x8gb Kingston Hyperx 1600mhz. Smart on disk is fine, GOOD status in Samsung MAgician and no errors in HD TUNE. Memtest86 not showing errors. After format to GPT and install again Windows 10 all is fine and working properly. Just want to know what caused issue before format. Thx. It was related to windows/software or hardware? I made topic because some peoples told me that corrupt data , can be caused by faulty memory(( What is yours opinions? But like i said i test memtest86, Windows Diagnostics Memory and hdtune showing no errors. Maybe try GoldMemory or that will be waste of time?