Reinstall the server redeploy the vm or cheat a bit.
Windows server 2012 license expired extend.
A remote desktop session host server can operate without a license server for 120 days after initial start up.
In this case you only have two options.
How to extend windows server 2012 evaluation period website.
Yes in fact there is cool hack which allows you to reset the 120 day grace period on windows server 2012 r2 rds and we ll show you how.
A rd licensing server is required for continuous operation.
There is a solution.
So your windows server 2012 r2 evaluation is shortly expiring but you still need that lab and cannot afford to reinstall os and setup all again.
Reset windows server 2012 r2 rds 120 day grace period.
Purchasing a new windows key activate windows through go to pc settings.
But the good news is.
Windows license is expired build 9600.
Extending the trial period.
First take a look at your desktop.
After window server evaluation period has expired you will found out unexpected behavior for your machine like unexpected shutdown restart every one hour approximately.
You can rearm it 5 times.
The system marks the license as expired.
The rd licensing grace period has expired and the service has not registered with a license server with installed licenses.
So that is 900 days in total.
When you home lab and you don t have microsoft license for rds you have two options.
Windows activation is designed to be as foolproof as possible so microsoft s graphical tools keep it simple if you want to do something more advanced like remove a product key force an online activation or extend the activation timer you ll need slmgr vbs.
Extend window server evaluation period has expired.
Windows server 2012 r2 evaluation lasts for 180 days.
You can extend the period to another 180 days up to 3 years.