If you use the Control Panel Add or Remove Programs applet to uninstall a program that was installed by Group Policy, Group Policy will NOT reinstall the program.
When you use the AppWiz.cpl (Add or Remove Programs) applet to remove a program, it does NOT remove the Group Policy application management information.
To manually remove the Group Policy application management information:
1. Start / Run / Regedit / OK.
2. Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Group Policy\AppMgmt.
3. Expand the AppMgmt sub-key and Delete the sub-key that has the program you want Group Policy to reinstall in the Deployment Name Value Name.
4. Press OK.
5. Exit the Registry Editor.