I am collecting my desk pc today from a local computer repair shop again after it decided to stop installing microsoft updates and every time i turned it on it spent 3 hours downloading/installing updates and getting to 98% installed before reverting back to the start again and basically stopping the pc from opening up (1000's of important files on it so they cannot wipe the h/d) fortunately i have my other computers to use while it was away.
All they have been able to do was stop the automatic updates so i can open it..... and its only got windows 8 (not 8.1) now.
The computer shop have decided to close for good thanks to the problems windows 10 has caused for their customers (they couldn't cope with all the work which took hours in some cases so they didn't have time to do them all so only getting paid for one job, not enough profit to pay their bills)
Cheers
Brian