SOLVED: How to Move Group Policy Objects (GPOs) Between Domains
It turns out that Group Policy Management Console (GPMC) has a dandy EXPORT, IMPORT feature. The only thing that isn’t particularly obvious is that you have to EXPORT (and IMPORT) in the GROUP POLICY OBJECTS folder, and not on any of the OU’s.
On the old/source domain, start GPMC
Expand your GROUP POLICY OBJECTS folder
Right click on a policy you want to move
Select Backup
Copy the resulting file to a stick, network disk, floppy, whateva’
Move the backup file to to the new/destination domain
Open GPMC on the new/source Domain Controller (DC)