Hi,
Which update package you installed on your computer?
I searched and found a similar issue with you, please refer to the workaround measure recorded in LukeChung's blog or uninstall the update package through Control Panel\Program and feature\view installed update and feedback your action result to us.
Remote Desktop Authentication Error Has Occurred.
The function requested is not supported
Bests,
Please remember to mark the replies as answers if they help.
If you have feedback for TechNet Subscriber Support, contact
tnmff@microsoft.com.