Tailon. wrote
although not enough information , my first thought would point to a HDD failure or corruption and or a possible PSU problem
Sounds suspiciously like hardware?
Anyway I've sent my query to the automated Microsoft tech site - am awaiting reply. Tried their fixes and some of the stuff they tell you to do don't even appear in dialogue boxes. I think things are just becoming more and more complicated so you can't just fix things yourself. Good news for computer technicians ... who I guess also have to keep up with everything
I also hate computers