Apr 18, · windows server enterprise edition Serial number The serial number for windows is available This release was created for you, eager to use windows server enterprise edition full and with without limitations. Feb 10, · Boot to a Windows installation disk. press enter to install windows now. accept license. Start a repair. when you see the Installing Devices bar in the bottom left, press SHIFT + F10 to get a CMD prompt. At the CMD prompt type: "control userpasswords2" and in the password window set to no password required. Finish the repair. Feb 14, · Answers. You should only type your KMS key on one Windows Server R2 computer. For other Windows Server R2 computers, you should type the KMS client setup key. A KMS key can be used on 6 computers. This means you can setup up to 6 KMS hosts for high availability. They will not be counted and they will have their own SRV records.