Windows Installer Logging
Windows Installer can use logging to help assist in troubleshooting issues with installing software packages. You can enable verbose logging with this setting. Go to Start/Run/Regedit and navigate to this key:
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Installer]
Create a new string value called "Logging" and set it to a combination of the letters below to enable the logging options. A value of "voicewarmup" will enable all the logging options.
The next time Windows Installer is used a log will be created.
Note: Windows Installer will store the logs in the TEMP directory. The filename is random, but begins with the letters "Msi" and end with a .log extension.
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Installer]
Create a new string value called "Logging" and set it to a combination of the letters below to enable the logging options. A value of "voicewarmup" will enable all the logging options.
| Letter | Option |
|---|---|
| v | Verbose output |
| o | Out-of-disk-space messages |
| i | Status messages |
| c | Initial UI parameters |
| e | All error messages |
| w | Non-fatal warnings |
| a | Start up of actions |
| r | Action-specific records |
| m | Out-of-memory or fatal exit information |
| u | User requests |
| p | Terminal properties |
| + | Append to existing file |
| ! | Flush each line to the log |
Note: Windows Installer will store the logs in the TEMP directory. The filename is random, but begins with the letters "Msi" and end with a .log extension.

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