I deleted the user on my laptop in the settings and changed the name and removed the user because I would like to sell it.
Now when I restart the laptop my old account is shown again. And the password or the passwords I had before do not work. What can I do?
Can I reset my laptop from the lock screen? Or is there still a possibility? And no, mkich didn't register with microsoft
Aha everything clearly sounds like when you found the laptop outside
You need an admin account or reinstall Win with Win Bootstick. It is not for nothing that Win creates such an account during installation. Delete all partitions and let Setup automatically create new ones.
Create a bootable USB stick with the Mediacreation Tool for Windows 10. Boot from the sick, delete the internal data medium in the following dialog and then reinstall Windows.
Take a look at the video: