When attempting to completely uninstall Recovery Manager for AD Forest Edition with a check mark to "remove AD backups" an error would occur:
"<servername.domain.com> is an invalid shortname"
The directory names are the fully qualified name but Recovery Manager only shows the hostname in the sample path and file name matching the provided format. You are forced to perform the uninstall without checking the "remove AD backups" option. After the uninstall it would then be necessary to open the directory location and delete the backups directory manually.
Manual removal of the backups is required at this time. This issue has the following enhancement request created for consideration to be included in a future version of the application:
PT102165456 - Enhancement request to have additional options added when uninstalling. To add the option to remove just the console backups, DC backups, none or both.