Hi, I have problems activate a Windows 2008 R2 server, the image is a volum license, and have been used several times before. I run the following command slmgr.vbs -skms <ip>:1688 > slmgr.vbs /ato Then i failes with "0xC004C003 - The activation server determined the specified product key is blocked. The MAK is blocked on the activation server. Contact the Microsoft Activation Call Center to obtain a new MAK and install/activate the system." Why does this suddenly happens? I guess we haveto call MS, and obtain a new MAK ? Regards Ole

Hi, I think you have to call the Microsoft Activation Call Center to verify the status of the MAK key you entered. Regards, JamesJames Xiong TechNet Community Support