This is a short summary how to upgrade the license of Server 2008R2 Standard to Enterprise or Datacenter.
Before you change the license, be sure that you understand the consequences (change of license can result in high costs).
- open a CMD
- to find out the current version run:
DISM /online /Get-CurrentEdition
- to list all possible target editions run:
DISM /online /Get-TargetEditions
- perform the license upgrade running the following command:
DISM /online /Set-Edition:<edition ID> /ProductKey:<license key>
After running the last command, it is necessary to reboot the server. Then you can check the license with the “DISM /online /Get-CurrentEdition” command from step 1.
If you have a KMS host running in your environment you can use the following license keys for the upgrade: Appendix A: KMS Client Setup Keys