That means you can’t roll back or reinstall Windows the normal way either.
As a safety net should something go seriously wrong with your PC, youmust create a Windows recovery drive on a spare USB stick.
How?
Open the Start menu, and search for “create a recovery drive”. This will bring up the right utility.
Follow the instructions on screen to copy over the necessary files to your chosen USB drive, but note that these files won’t include your personal files and data.
If disaster strikes, you’ll need to boot up from your recovery drive.
This is usually done by holding down the Delete or F8 keys while your PC starts.
Opt to boot from your USB drive, then pick Troubleshoot > Advanced Options > Recover from a drive to get Windows reinstalled.