you have ordered VPS KVM with Win 2012 R2.
After 180 days the trail ends of the OS, and it will shut down every hour.
There is a solution. Windows Server 2012 R2 Evaluation lasts for 180 Days. You can rearm it 5 times. So that is 900 days in total.
Run Command Prompt with Administrator Privileges and run following command:
- slmgr.vbs -rearm
- Reboot your Windows Server 2012 R2
- After reboot you have fresh 180 days to test on your disposal.