Extend evaluation period of windows server
Windows 2019
To extend the evaluation period the following steps can be used:
Open an elevated command prompt (cmd)
Enter the following command:
cscript.exe %windir%\system32\slmgr.vbs /dlv
The Windows Server evaluation version can be used for 3 years.
To rearm use the following command:
cscript.exe %windir%\system32\slmgr.vbs /rearm
Windows 2022
Check:
slmgr -dlv
Rearm:
slmgr -rearm
Restart-Computer