When you use the Group Policy Management Console (GPMC) to restore Group Policy Objects (GPOs) from a CD-R backup, you receive an Access Denied.
The problem occurs because files on the CD-R have the read-only attribute, which is retained after the restore.
To workaround the behavior:
1. Open a CMD.EXE prompt.
2. Create a temportary folder:
3. Copy the files that you wish to restore from the CD-R to the TEMP_GPO folder.
4. Remove the read-only attributes:
attrib -r /d /s
5. In the GPMC, restore the GPOs from the \TEMP_GPO folder.