Not very clear. Crashing is not the same as restarting.
See if you can boot from your Windows install disc or stick (free to make via the MEDIA CREATION TOOL, if you don't have it) or recovery drive (if you made it) and try the different repair options. Go back to your latest working image backup if possible.
If no luck with repairing, then refresh or reset Windows.
If no luck with that, it's a hardware issue that needs repair.
If you feel you can't do this yourself, bring it to a repair shop without trying to fix it yourself.
I have a solid pc nothing was wrong few days ago and now when i turn it on it starts to load and nothing is happening. sometimes it comes to the loading screen and chrashes. I dont know what to do can you guys help me.