PC crashes constantly
I have a 2.5yo PC and ive been experiencing issues with crashes lately.
This used to happen intermittently but is now happening all day.
I boot up and it might get stuck on the Windows welcome screen.
Sometimes i can get to password entry, other times i can't. Depending on what happens I can either log in or i have to restart. If i do get to Windows, it may freeze immediately or after startup
When i do get into windows, it works for maybe 10-15 minutes before programs slow down, video playback starts stuttering and browsers and Windows Explorer become unusable. I can move the mouse around but I can't open anything.
Sometimes it boots into Diagnosis/recovery mode.
It's not overheating, HWmonitor shows 34C with no major temp spikes.
Ran the NVMEs through Crystal Disk Info and the boot drive is at 98% health while the others are at 100.
No errors from OCCT CPU/RAM check.
Running out of ideas for how to fix this.
Thanks!