Registry Home > Windows > Troubleshooting > Logging

Windows Installer Logging (All Windows)

Windows Installer can use logging to help assist in troubleshooting issues with installing software packages. You can enable verbose logging with this setting.

This tweak can be easily applied using WinGuides Tweak Manager.
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Open your registry and find or create the key below.

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.

vVerbose output
oOut-of-disk-space messages
iStatus messages
cInitial UI parameters
eAll error messages
wNon-fatal warnings
aStart up of actions
rAction-specific records
mOut-of-memory or fatal exit information
uUser requests
pTerminal properties
+Append to existing file
!Flush each line to the log

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.

Registry Editor Example
|(Default)REG_SZ(value not set)|
Registry Settings
System Key: [HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Installer]
Value Name: Logging
Data Type: REG_SZ (String Value)

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Disclaimer: Modifying the registry can cause serious problems that may require you to reinstall your operating system. We cannot guarantee that problems resulting from modifications to the registry can be solved. Use the information provided at your own risk.

Last modified: September 24, 2003