During a GPO restore operation in RMAD, attempting to generate a Comparison Report produces no results and no error message is returned.

RMAD generates the GPO comparison report as an HTML file and then attempts to open the report using Microsoft Edge.
If Microsoft Edge is not available on the RMAD server, Internet Explorer is used instead.
If access to Microsoft Edge or Internet Explorer is blocked or restricted, RMAD is unable to open the report.
In this scenario, no error message is displayed and the report does not appear.
Resolution:
Ensure that Microsoft Edge or Internet Explorer is unblocked and allowed to run on the RMAD server so that RMAD can launch the report successfully.
As an alternative, the report can be opened manually using any application capable of viewing HTML files.
The generated reports are located at the following path: C:\ProgramData\Quest\Recovery Manager for Active Directory\GPOReports