What version of Windows are you running? 1511 or 1607?
I think it was 1607. I've done restore from windows 10 image downloaded from Microsoft website and it done the trick. Still thanks for your help.
What version of Windows are you running? 1511 or 1607?
Alls well that ends well. Hope this situation will not arise again for you. Have a great dayIt was my plan to try when deplete all the option, and yes, it worked. I've done full wipe of the drive as well. Something terrifying happened and I'm not sure if it was suppose to; on updating firmware when third progress bar was filling up cpu started overheating and fan was working like mad and machine suddenly cut off. I couldn't have turned it on for next 5 minutes, longest 5 minutes ever, as this sp4's warranty is expired (bought it of ebay). When it finally started back up it finished remaining updates, going hot on the last one againbut this time when it shut down it restarted straight back up. So, so far so good. Just doing normal updates now. Thanks everyone for input. I think I can close this thread as solved.