Microsoft Installer (.msi) files
Repairing installed software
For .msi installers you can often solve issues just by right-clicking and selecting "repair" which will run through the installation again and fix any missing/corrupt files and registry entries.
Administrative rights are often not needed to perform a repair which can be useful for when you don't have elevated privileges.
Install/Uninstall .msi packages using msiexec
The Windows msiexec tool can be used to install and uninstall .msi packages via the command-line.
- Install example: `msiexec /i "%userprofile%\Downloads\myProgram.msi"
- Uninstall example: `msiexec /x "%userprofile%\Downloads\myProgram.msi"