Replace Remote Desktop Connection Self-Signed Certificate Fingerprinting error

Question

ERROR:
Description = Invalid parameter

Answer 1

Hi,
According to your description, have you config the Remote Desktop certificates as the information below:
https://techcommunity.microsoft.com/t5/security-compliance-identity/configuring-remote-desktop-certificates/ba-p/247007
It seems that importe a certificate without a corresponding private key.
Also to get the fingerprint value

Open the properties dialog of your certificate and select the Details tab.
Scroll to the Fingerprint field and copy the hexagon enclosed by spaces in Notepad.
Delete all spaces in the chain.

This is the value you need to set in WMI.

Hope this helps and please help to accept as Answer if the response is useful.
Best Regards,
Carl

Answer 2

Hello,
Thank you for your information.
Please verify that the thumbprint is correct and that the certificate is stored in the Local Computer\Personal store.
If we want to install a SSL certificates to replace Self-Signed Certificate. Please check the Scenario 2 in the link below:
https://techcommunity.microsoft.com/t5/core-infrastructure-and-security/remote-desktop-connection-rdp-certificate-warnings/ba-p/259301
Hope this helps and please help to accept as Answer if the response is useful.
Best Regards,
Carl