Disabled administrator account on Windows 10

Having disabled my own account on Windows 10 twice(!) by mistake (with no other accounts available for login) there is a nice and easy tip for solving this. Google has lots of tips on how to solve it, with everything from reinstallation to entering the command prompt at shift-reboot but none of these tricks worked for me. Mostly because no accounts are available at the shift-reboot command prompt and a reinstallation seems a bit over the edge.

Instead, use the following trick:
https://4sysops.com/archives/reset-a-windows-10-password/

In short:
1) Boot from a Windows 10 CD
2) Start a command prompt
3) rename utilman.exe in c:\windows\system to utilman_old.exe
4) copy cmd.exe to utilman.exe
5) Reboot
6) Click the Easy-of-access icon at the Welcome screen and the Command Prompt should start
7) Type net user [your-user-name] /active:yes
8) Reboot.
9) ???
10) Profit!

Removing Skype from Windows 7/10 autostart

While it's possible to remove Skype from Autostart by logging into Skype and the changing the settings, most people do not want to login to change this settings.

Instead, remove Skype.exe from the following key in the registry:

Computer\HKEY_LOCAL_MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run