I have an installer that I've built and when I double-click setup.exe the first screen I see is the Resuming installation screen. So what would cause an installer to begin in Resume mode? There is a prior installed version (same Upgrade Code - different Product Code) but that installation finished correctly.
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Quick Guess: Please try to check first if you need a reboot to complete the installation that is suspended but appears complete?
Reboot & FixIt: Are you sure the previous installation completed correctly? Maybe there is a reboot pending? Try to reboot? Then maybe try to run this tool: Microsoft FixIt to resolve stuck or suspended installations.
Suspended: Suspended Windows Installer (MSI) installations are not very well documented I think, here are some relevant properties and actions and associated documentation:
RESUME Property
: https://learn.microsoft.com/en-us/windows/win32/msi/resumeAFTERREBOOT Property
: https://learn.microsoft.com/en-us/windows/win32/msi/afterrebootForceReboot Action
: Reboot on install, Don't reboot on uninstall
Links:
- Recent answer on logging and debugging (try to check the logging perhaps?)
- Comprehensive answer on MSI logging

Stein Åsmul
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