This sounds like the usual issues. Such as
1. The CPU heatsink fell off.
2. The machine is old and the PSU can't handle the load.
So, I have been having this problem for like 2 days and I don't know what to do more and so I came to a forum and asked for help!
So, I boot my computer, i login in my windows account, and after that my computer freezes, but not instantly, it freezes after 5/10 minuts in or when i open any program, like Battle.net or Steam...
By the way i bought a GT 1030 and a new 1920x1080 monitor about 3 days ago.
I was out of ideas so i tried to use the reset PC option in windows, it did reset,but doesnt let me pass from the language option screen because it instantly freezes there.
HELP ME PLEASE!!!

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic