[SOLVED] Big problem

Solution
Windows 10, I went for holding Shift on Restart and afterwards Reset my PC, all files and everything.. No reason, just to clean up disks. And blackout came -.-
should I go format it? What does it mean
Since you were going to reset anyway...go all the way.
Full wipe and reinstall.

Assuming you have access to another working system, create your own Win 10 USB to install with.
https://www.microsoft.com/en-us/software-download/windows10

Boot from that, and...

Section II, Step 6 & 7 speak to DELETING all existing partitions on that drive.
Windows 10, I went for holding Shift on Restart and afterwards Reset my PC, all files and everything.. No reason, just to clean up disks. And blackout came -.-
should I go format it? What does it mean
 
Windows 10, I went for holding Shift on Restart and afterwards Reset my PC, all files and everything.. No reason, just to clean up disks. And blackout came -.-
should I go format it? What does it mean
Since you were going to reset anyway...go all the way.
Full wipe and reinstall.

Assuming you have access to another working system, create your own Win 10 USB to install with.
https://www.microsoft.com/en-us/software-download/windows10

Boot from that, and...

Section II, Step 6 & 7 speak to DELETING all existing partitions on that drive.
 
Solution