Accidentally opened an .MSIEX installer file with BandiZip - How do I get it back to windows installer?

If you click on the Bandizip association there, does it give you the option to change it to App Installer?

Use RevoUninstaller to remove Bandizip. Make sure you use the Advanced option to remove all leftover files/folders registry entries

Install and run RevoUninstaller (freeware version)
Options tab (along the top) > Uninstaller (LH column)
Untick Make a Restore Point before uninstall
Tick Checkmark all leftovers by default
Uninstaller tab > Double click the desired program
Run the uninstallation process
IMPORTANT DO NOT reboot even if prompted when completed (Cancel if prompted)
Select the Advanced button and then run the process to remove all leftover files/folders/registry entries left behind after a normal default uninstall process
If prompted at any stage previously, now do the reboot

Check the file association. If Bandizip has gone, just re-install it (it shouldn't re-associate itself)

Normally the .msixbundle file association belongs to App Installer (also called "DesktopApp Installer").

The App Installer option should be available, even if you associate msixbundle files with Crash Bandicoot. Try resetting the App Installer, since yours is missing...



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