Add or Remove Run as administrator Context Menu contains the registry files to add or remove 'Run as administrator' from the Context Menu.

Download Add or Remove Run as administrator Context Menu, and extract the two files:

Remove Run as administrator Context Menu.reg
Add Run as administrator Context Menu.reg (Default)

Double-click Remove Run as administrator Context Menu.reg or Add Run as administrator Context Menu.reg to enable or disable Disable Automatic Maintenance in Windows 10.

Click Yes when prompted by User Account Control.
Click Yes when prompted by Registry Editor.

Click OK when prompted by the Registry Editor.

This tweak is included as part of MajorGeeks Registry Tweaks.

Similar:

How to Check if User Accounts are Administrator or Standard Users

How to Make a Program Always Run as Administrator And or Compatibility Mode

Open Powershell Window Here as Administrator Context Menu

How-To Run PowerShell or the Command Prompt as Administrator