Hi to all the helpers, I ran Windows update troubleshooter. It fixed a few things and I ran the Windows Upgrade Assistant again. It downloaded the files for the upgrade and began the first restart session. When it got to 11% it suddenly stopped, no message displayed, and restarted again. After restarting it gave the message: "Restoring your previous version of Windows...". I have no clue what prevents it from progressing and finalizing the upgrade.