Resetting Windows Server's 120-Day Remote Desktop Services (RDP) Grace Period

1	HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\RCM\GracePeriod

#Step 4: Modify Permissions on the GracePeriod Key

To access Permissions, right-click on the GracePeriod key and choose it.

By default, this key has no permissions set, even for administrators. You will need to take ownership in the next step.

#Step 5: Take Ownership of the GracePeriod Key

In the Permissions dialog, click Advanced.

In the text field labeled Owner, click Modify.

Click on Change

Enter: Administrator

Choose the local administrator's group or the relevant user/group that should manage the key.

Check the options to Replace owner on subcontainers and objects and Replace all child object permissions.

#Step 6: Grant Full Control to Administrators

After changing ownership, adjust the permissions by granting the Administrators group full control over the GracePeriod key. Select Full Control in the permissions dialog.

#Step 7: Delete the TimeBomb Value or the Entire GracePeriod Key

With the correct permissions set, right-click on the TimeBomb value under the GracePeriod key and select Delete. Alternatively, you can remove the entire GracePeriod key from the Registry.

#Step 8: Confirm Deletion

Confirm that you want to delete the registry entry.

#Step 9: Restart the Server

Restart your server. After rebooting, the full 120-day grace period for your RDP server will be reset, allowing continued use in your lab environment.

#Step 10: Adjust Group Policy Settings

Type gpedit.msc in the Run dialogue box once more after restarting.

Go to Administrative Templates > Windows Components > Remote Desktop Services > Connections to open the Remote Desktop Session Host.

Enable Limit number of connections and set it to 999999.