Rds Cal License Registry Key !link! Jun 2026

: Inside this key, there is typically a binary entry starting with L$RTMTIMEBOMB

Close all active Remote Desktop connections on the client machine. Open regedit.exe with administrative privileges.

By understanding these locations, administrators can effectively troubleshoot licensing bottlenecks, manage non-domain environments, and ensure compliant Remote Desktop Services deployments. rds cal license registry key

Sometimes, administrative policies or aggressive security software strip the local Users group of their read/write permissions to the MSLicensing hive.

If you are seeing "The Remote Desktop trial period has expired" even after installing licenses, you may need to delete the cached grace period key to force a refresh. : Inside this key, there is typically a

Right-click again and choose Delete . Confirm the deletion. Reboot the computer.

RDS session host shows “Per User” mode, but users get a temporary license expiration warning. Check: Confirm the deletion

Modifying RDS CAL registry keys requires careful adherence to Microsoft licensing terms and safety protocols:

If you are managing the itself:

: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\RCM\GracePeriod Function : Controlling the 120-day licensing grace period. Contains a REG_BINARY entry beginning with the string L$RTMTIMEBOMB whose default permissions prevent modification. When to use : This key is modified primarily in test/lab environments when needing to reset the grace period after temporary licensing expires.