New
#11
Well ... if I may be allowed to joke with you (in a totally friendly way) unless he had a "magic wand", there is no way he could login to your computer, either linux or windows, without your password, or some external operating system.
BTW this tutorial is a legit way to enable the Default Administrator Account when one has damaged his computer and no longer has any administrator rights with any user accounts. That is why I recommend giving the special account a password. User Account Password - Change from WinRE
Cheers!
Robert