CCleaner destroyed my computer, need help reinstalling

[Dewhurst]

Well I’m back here again, but with a better computer.

Yeah, this whole situation was all my fault, apologies.

Anyway, I got my old hard drive, labeled F:, from my old computer, it had unnecessary files and all that so stupidly of me I used CCleaner and I wiped it, now, I played a game but then the game froze so I decided to simply restart my computer.

Then it said Automatic Repair cannot fix, I cannot reinstall Windows because it says that “there was a problem” sfc scannow can not help (it says "Windows Protection could not perform the requested action) DISM too. I can’t boot it on Safe Mode or Windows 8, neither I have a Restore Checkpoint, nothing, all I have is cmd.

The problem here is, I accidentally deleted my Windows file now I need help restoring it.

BONUS QUESTION: How did I delete my system files even tho I deleted my old computer’s?

[Rustys]

you could see if you can access the restore checkpoints using the install media?

see if this helps

https://www.thewindowsclub.com/boot-or-repair-windows-10-using-the-installation-media

[Bruce]

in CCleaner, what process did you do?
I assume you did a Drive Wiper, and in the Wipe section, told it Entire Drive, then what drive did you select?

not that it matters, it sounds like it has either wiped your C:\ (system) drive or the PC is now trying to boot from the old F:\ drive.
so first thing, take out the old drive for starters.

if CC was told to wipe C:, it wouldn’t have been able to do the system files that were locked and in use at the time, which is why it still worked until you rebooted. and you are now up for creating a bootable USB stick with the Windows 10 image on it, created via the Microsoft Media Creation Tool, available HERE by clicking the Download Tool Now button.

[Dewhurst]

Thank for your support, I successfully reinstalled it.

[Rustys]

Glad to hear that you got it resolved.