Windows 10 freezes quickly after boot up

Some back ground context. I have AMD RYZEN 7 5700g , 64gb memory, gtx 1080 ti gpu and a few ssds installed. I have been using this pc I built for around four years running windows 10. For some odd reason I upgraded to windows 11 bc windows 10 was hitting end of life (huge mistake there). Windows 11 worked fine for about a month or so and then one day my start window wouldn’t open up and I couldn’t open up my file explorer as well and other programs. I was still able to run chrome web browser but pc would crash eventually. Causing me to have to do a hard reset by pressing and holding the power button. So I decided to roll back to windows 10. Now my pc boots up normally it crashes after about 1:35 seconds without me running anything. Sometimes pc will just reboot on its own and state “it looks like windows didn’t load correctly “ I have ran some tests with programs on my ventoy drive but nothing stands out. I have even tried to place a new clean install of windows 10 again with no luck. When I do the windows repair when I get the blue screen pc states “Startup Repair couldn’t repair your pc”. Some suggestions would be appreciated.