Computer gave me a start up error after restarting

[__kobers__]

I restarted my computer and when it turned back on it gave me a start up error and I tried everything, restoring to a older time, command prompt, start up repair. Nothing. Any ideas what I should do to solve this? Also to add I think when it restarted windows also updated. I have windows 10

 

[Colif]

what error is it giving you? its obviously not cannot find boot drive as you using it. was it a bsod?

On another PC, download the Windows 10 media creation tool and use it to make a win 10 installer on USB - if you don't have one already

is there anything on C drive you want to rescue? try making this on another PC: http://www.howtogeek.com/howto/windows-vista/use-ubuntu-live-cd-to-backup-files-from-your-dead-windows-computer/