Windows 10: Grey screen after starting pc!

Hello, I have been having problems with my computer for about a week nowMid game i was freezing and games were crashing, my HDD D drive had all games on it and was sitting at 100% usage when playing which i thought was the causes to the crashes.It escalated from there resulting into a grey screen after starting the pcto fix this i decided to buy an m.2 since they are cheap enough so i bought the m.2 unplugged the old drives and put the m.2 in and downloaded windows 10 from a usb using another pc in the houseAfter setting up windows i downloaded opera gx, discord, steamThen i downloaded Ark s

:)