I'm not sure why it would be doing anything the computer was closed last night and when I woke up I could hear the motor arm so I opened it and that's what it was doing so I restarted it in the cycle begin
It seems the advice is either reset PC or a fresh install.
both require reinstalling almost everything again. But you can save a lot of files doing this: http://www.howtogeek.com/howto/windows-vista/use-ubuntu-live-cd-to-backup-files-from-your-dead-windows-computer/ or putting hdd into another PC and copying data over.
change boot order so USB is first, hdd second
boot from installer
on screen after languages, choose repair this pc, not install.
Choose Keep files/Settings as this will keep library folders (documents, pictures, music, movies) and Logon info
PC will restart and install win 10 again.
A fresh install would likely install the update that caused PC to roll back, but if you hadn't fresh installed and had previously upgraded from win 7 or 8, then chances are this second upgrade was too much for win 10 to cope with. I expect you were getting the Anniversary Update that was released a month ago