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Whitelisting is also enforced (=mandatory), when you deploy your own RSA 4096 bits MCUpgrade_PublicKey.sig file to %ProgramFiles(x86)%\panagenda\MCUpgrade (make sure that end users have read permission only!).
For further details on Whitelisting, see The (MC)KeyfileEditor for Whitelisting.
Admin rights (only visible with Elevation via MCUpgrade as Admin):
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For further details on how to create either file, see The (MC)KeyfileEditor for Elevation.