I encountered the same problems when I had a Windows 10 machine in 2016 - every couple of months the thing would shit itself for no apparent reason. The only thing I could do was copy all my personal files to an external disk and reinstall the OS.
My next computer was a bit more stable - but I still had a few nasty scares. Installed Mint and never looked back ;)
Not having to reinstall Windows every 6 months just to keep it running fast