Terminal Server License Activation error Fix

In case you have the windows Terminal server, also you may have theinstall licenses grayed out.
There is a problem in the registry, so just delete the following keys, all three of them.
Then reboot, after reboot woalla, all will be fine. I have tested it.
HKLMSoftwareMicrosoftTermServLicensingCertificates.
HKLMSystemCurrentControlSetservicesTermservLicensingParametersCertificates.000
HKLMSystemCurrentControlSetservicesTermservLicensingParametersCertificates.