So, you probably already know about the option to right-click on an application in Windows 10 and being able to choose “Run as Administrator.” But, what if you want to run as a different user entirely?
With a quick registry edit, you can add the following “Run as a different user” option to Windows 10 apps. This doesn’t work for Windows Universal Apps, just apps that are executed with a .exe extension (example: Microsoft Word). Microsoft considers these types of app as legacy apps.
Registry key path:HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Explorer
Registry value: ShowRunasDifferentuserinStart (DWORD value)
Registry value data: 1 (hexadecimal)
By making a simple registry modification you can enable the ability to run apps under a specific user account.
Source: Adding “Run as a Different User” Option to Apps in Windows 10