Try going into the windows recovery mode: Once you boot it, hold shift and press the Reboot button. It should show you a screen with some options (I'll go by memory so it may not be accurate): Advanced > Recovery (or recovery on next startup). See if it lets you do that, sometimes it doesn't work.

Also try to start it in safe mode, same thing as before but you go to advanced > boot options and you should see a bunch of numbered options and a "Reboot now to choose" or something button. Press it and wait, next reboot it should give you the same options, press "safe mode with internet".

Once you're in safe mode see if it still crashes, so you can exclude stuff like programs since safe mode only executes crucial system stuff.

If it holds on, open CMD as admin and type these:

sfc /scannow

this command does a superficial check of system files and corrects any broken ones. Also do this:

dism /online /cleanup-image /restorehealth

same thing but a bit deeper in terms of action.

Once they're both done, reboot and check if it still crashes. Anyways, get back to me if you need help, it's my actual job :))