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FIX CredSSP encryption oracle remediation error in Windows 10 home edition

Fix Remote Desktop CredSSP Encryption Oracle Remediation... This is how you get rid of the CredSSP Encryption Oracle Remediation Error in Windows 10 Home Edition:
1

Type `cmd` in the search bar of your Windows 10

2

Right click on cmd and `run as Administrator`

3

Copy/paste the following code and confirm with `Enter`

Shell
REG ADD HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System\CredSSP\Parameters\ /v AllowEncryptionOracle /t REG_DWORD /d 2
4

Reboot. After the reboot, the RDP connection should be easy to establish.

An authentication error has occurred. The function requested is not supported. Remote computer: <IP or name of computer>. This could be due to CredSSP encryption oracle remediation. For more information, see https://go.microsoft.com/fwlink/?linkid=866660 .
Last modified on May 6, 2026