The download page mentions that the user must activate the evaluation version over the Internet within 10 days of installation to avoid hourly automatic restarts. Next Continue. Forget password?
 
 

Windows Server R2 | Microsoft Evaluation Center.

 
During the upgrade, access to the VM instance is limited because: Workloads running on the VM instance are unavailable to users Remote Desktop Protocol RDP is not available There are limited ways to check the upgrade progress and the time remaining in the upgrade Risk: Depending on the configurations of your existing instances and the installed software: The upgrade can fail Some configuration options can be overridden Incompatibilities can cause your workload to malfunction on the upgraded instance Depending on the workload running on your Windows Server instance, you can reduce downtime and risk by pursuing different approaches.