Windows 10 occasinal freeze, not reproduceable.

If there is an entry in Critical Events,in Reliability History,then under the Summary heading,RIGHT click on the entry and that should give ---view tech details--- and a left click on that gives the log file.

Thanks for the answers, i'll try one thing at the time so i don't do too many things at once.

For the explorer.exe hang, the only info in reliability monitor was that it had stopped communicating with windows.
In cases where i hit the reset button, the only entry is that the shutdown was unexpected.

Ok, so it just happened again. Everything slowly stops responding, apps, windows. Except for ctrl+alt+del, so i could log out and back in which appears to be enough to recover. No reboot needed.
Since the last time i shipped my 5700xt off to RMA, meanwhile i am using a backup nvidia card. Did a DDU, it's been running fine since thursday.
Reliability History says the hang had something to do with the nvidia drivers. But i don't know if the nvidia drivers are hanging because of windows and windows then detects that, i don't know the order of which things are happening. So, i don't know how much i can trust Reliability History. Considering that a driver crash shouldn't make every app stop responding and timeout.

Thanks, i'll have a look and see what i can dig up.