Windows Server 2012 R2 reached end of extended support on October 10, 2023 . Microsoft no longer provides security updates unless you have an Extended Security Updates (ESU) agreement—which is costly and limited to specific volume licensing customers.
Replace <product_key> with your valid product key. activation windows server 2012 r2
Before activating Windows Server 2012 R2, ensure that: Windows Server 2012 R2 reached end of extended
To verify that Windows Server 2012 R2 is activated: bypass tools) is:
(e.g., KMS emulators, bypass tools) is: