After "Clear Endpoint" I can't run the computer

Hello,

Here is a very strange thing that happened to me yesterday.

After running Quick Scan with Comodo antivirus (which found nothing suspicious), I run “Clear Endpoint” in “Advanced Tasks”.

After doing its job, it asked for a restart of the laptop, which I made immediately.

After that… Well… Windows 10 won’t start. I could get to options for repair, but:

  • Startup repair doesn’t work.
  • SFC doesn’t work.
  • Safe mode of Windows won’t start.
  • System restore to a previous point doesn’t work.
  • Reinstalling Windows online doesn’t work (it says can’t connect, even when all my other devices work on the same WiFi without problem).

Any explanations, please?

Sincerely,
Nikola