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Uninstalling a Previous Version from an MSI

It was absurdly hard to figure out how to auto-uninstall a Previous Version from an MSI, so I’m just adding a link here in the hope that it will help the world find that link easier.

Basically:

• In the Setup project properties, there’s a property “Version” (probably 1.0.0)
• change it to any value e.g. 1.0.1 (do note the 3-part, in assemblies, versions are 4-part)
• Now it will ask to change product code automatically - just click “yes”
• Build the new relase & install it.
• The previous verison will get uninstalled first.