Hello, I have a Windows Server 2008 R2 Enterprise server and every couple of months. I get a prompt to activate Windows. I select Change product Key and enter the same key and it activates successfully and then later again prompts me for activation. The 2008 server is a virtual machine on ESX and hasn't been modified since the installation. I did try the SLUI 04 option and the when I told the problem to the Microsoft support person, he said this is a Re-activation loop issue and I would need to contact Technical Support. The Support person did verify that the Product Key is valid. Please let me know if further information is required. thanks RajeshRJ

Hello, which kind of license agreement do you have with that key? Do you have Volume licensing and require your own KMS server?Best regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

Hi, It is Volume licensing but without KMS. These are MAK keys. RJ

Hi, Did you make hardware changes after activating the system? Tim Quan

Hi, We haven't made any modifications to the virtual machine since the activation. thanks RajeshRJ