clean full nuke and pave...use an 8g usb stick from another pc download window 10 media creation tool and make a bootable iso usb stic. anything on the stick is going to be wiped so use a new stick just for windows installer.
after it done put the newest drivers for the mb on it..chipset/sound ethernet and video into a folder called drivers.
boot off the usb stick when it asks for windows key click skip as windows will pull you old key when it logs back onto the internet. go into advance mode and wipe all of the partions off the ssd or hard drive where windows is. then let windows make new system restore and data partion.