Policy Reporter 4.2

It reformats the log provided in %systemRoot%\Debug\UserMode to give a more meaningful display.
This latest version also displays the logs created when processing Preferences.

It provides a tree structure on the left which shows major events reported in the Log. Selecting an entry in the tree structure displays that section of the log in the view window.

It also has a "Performance History" tab that loads Group Policy Performance information from the registry, including the time taken to apply the policies and what policies were applied.

Policy Reporter makes it much easier to understand how Microsoft implements Policy Processing.