[Solved] Untrusted Certificate when installing MSIX build using Flutter

On the last day when I tried to install my flutter app build for windows using the MSIX plugin, I faced an error saying that the app certificate is untrusted. So with some research online I find a solution to that problem. So if you are facing the same issue follow the below steps.

• Select Properties from the right-click menu of the MSIX package.
• Go to the Digital Signature tab.
• From the Signature List choose the certificate.
• Click on Details.
• Click on View Certificate.
• Click Install Certificate.
• Choose Local Machine from Store Location.
• Allow the app to install certificates.
• Choose Place all certificates in the following store.
• Click Browse and select Trusted People.
• Click OK and Click Next then Click Finish
• Then you should see a popup window with the message “Import was successful”

Watch the below video if you have any doubts.