Enabling the Run as Different User Option
Press the Windows + R key combination to bring up a run box, type gpedit.msc and hit enter.
Now you will need to drill down into:
User Configuration\Administrative Templates\Start Menu and Taskbar
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On the right-hand side you will see a setting called Show “Run as different user” command on Start, double click on it.
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Now switch the radio button from “Not Configured” to “Enabled”, then click on the OK button.
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Now we will need to force the policy to take effect on your PC, to do this press the Windows + R key combination, when the run box opens the following then hit enter:
gpupdate /force
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That is all there is to it. Now you can easily run applications as a different user from the Start Screen.