Greetings!
So I gave my wife my older PC before buying a new laptop for her anyways the PC has been moved around a lot and lately it's just not wanting to boot back up. Before this it somehow got itself stuck in a boot loop over and over again and before that it refused to open any programs saying something about how it was not authorized to do it. I have to spam F8 or F12 to get to the advanced options upon boot up however when I try to delete all files and start fresh it'll get to 3% then "Undoing changes" then I'm back to square one. Startup Repair tells me nothing is wrong with it.. but clearly something has to be. After the windows logo screen sometimes I'll see like a white line of some sort and then I'm stuck on a black screen...
Just looking for help before possibly taking this to a shop..
Thanks!
Comments
1. Boot into windows installer
2. When asked "Which type of installation you want", select "Custom: Install Windows only (advanced)"
3. The installer should ask you "Where do you want to install Windows".
If you have only one hard disk, delete all of its partitions.
4. Assuming you have only one hard disk: Once you've got only "Drive 0 Unallocated Space", select next.
Windows should make new hard disk partitions automatically
That said, a couple additional suggestions:
If the computer has been moved around a lot, it's worth popping open the case and making sure everything is still seated well. A DIMM, cable/power connector, or video card could have shifted loose. Sometimes just pulling that stuff apart, give it a good dusting while you have it open, and plugging it all back in will work.
If you can get to the point where Windows lets you boot - run a disk scan to check for bad sectors. If you aren't able to get Windows up and running, there are various bootable thumb drive images you can get to scan the hard drive from a bootable image (Including the Windows 10 installer: https://winaero.com/open-command-prompt-boot-windows-10/ -- from there run chkdsk, assuming it sees the drive)
If you do end up wiping the hard drive, if you do a Full Format (not a quick format) during the Custom Install like Vrika suggests, the Full Format option will automatically scan and flag any bad sectors while it's doing the format. It does take a while to do though (sometimes hours)... whereas a quick format is only a few seconds)