Windows 10: It shows :Startup couldn’t repair your PC

I already tried shutdown and restart. Please help with the advanced options . And if I want to reset it without deleting my files it says , you don’t have much space .And I don’t want to delete my files for reset.Please help

:)

 

Startup repair couldn''t repair my pc BSOD error code 0xc0000221

I am getting a BSOD (Blue Screen Of Death) Startup repair couldn't repair my pc and when I tried to reset the pc wont repair the problems used all the troubleshooting tools which didn't work. Won't let me boot into safe mode. After I go though all the steps i get the screen Recovery Your PC/Device needs to be repaired. The header checksum for this file doesn't match the computed checksum Error code 0xc0000221. You will need recovery tools. If you don't have any installation media (like a disk or or USB device) contact your administrator (which is me). I downloaded a windows 10 iso file on a dvd. How would I be able to repair this? Could I boot into dvd and reinstall windows 10 with keeping my files, or use recovery tools?

 

Can't get GPU-Z to start with Windows 8.1 startup

I'm not sure how to do that. Could you list the steps for a noob?

 

Trying to reinstall Win10

Do not download or use Restoro PC Repair Tool, just try the steps listed below that.