I have 2 Windows 2008 R2 physical servers that are running the Hyper-V role and they each have 4 VMs guests (combination of Win 2003 R2,Win 2008 R2). One Host is Win 2008 R2 Ent. and tehn other is Win 2008 Rs Std. My issue is that i have a remote offline Winn 2008 R2 Std. physical server that also has the Hyper-V role and i use this as my back-up server. I have set the VM network adapters to connect to a non-internet connected swtich. I would like to be able to restore all my VM's to this server and test that everything, except Internet reliant, services work. My issue is that some VM's require reactivation while others do not. I used the Virtual machine license for the Vm guests on the Win 2008 R2 Ent. server while the other server used individual Win 2008 Rs Std. licenses. It seems the Std. licenses are the ones that need reactivation. Why would the Vm's even know that they are have changed Hosts. They do get nw virtual NIC's and the Host CPU is a different Xeon version. The real issue is that it doe take a while for the restore to finish and to set up everything with networking etc. and i only have 1 day a week to work on this remote site, but the reactivation only gives me 3 days to work with it. What doI need to do to have the Std. versions not require reactivation everytime i do a restore?