I have 300 clients still using Windows XP. (I know I know...) We are developing a Windows 8.1 Pro based client to replace this. I created new OU and subsequent policy on the same server that runs the existing clients. I soon discovered as I enabled, disabled and defined while in the newly edited file for Windows 8.1 that the Windows XPs were going offline. I did some quick reading and tried moving the OU to below the original OU, but more sites were complaining. I saved the policy and then deleted it from the GPMG. I had all sites reboot their systems and they were okay again. Due to the way our company works (read that big and slow) I assumed it would take some time to eventually transition from the XP to 8.1 and I wanted to offer them both a working solution over a period of time. Once the site has the new system running then the old one is shutdown. So what do I have to do to accomplish this?