If You want to transfer/copy/migrate GPOs from Domain A to Domain B, You need to:
On Domain A:
- Select GPO you want to transfer
- Right click ->Backup
- Select location where you want to save backup
- Backup->Ok.
Copy entire saved folder (name of folder is GUID, something like {6E6C373B-1………………) to Domain B.
On Domain B:
- For example: copy backup folder “named by GUID” from Domain A on desktop server Domain B
- From that folder copy(not cut) all content out to desktop
- Make new GPO
- Right click->Import
- For “Backup folder” chose Desktop
- Next->Next->Finish->OK
Now, You can link Your GPO to OU.
You can delete all files and folders from desktop….