Remote Desktop Connection Error Code 0x904 Extended Error Code 0x7 Best

Since extended error 0x7 often means "cannot store the license," deleting the corrupted cache forces a fresh license negotiation.

Run these on the client (as Admin) to capture detailed logs:

# Clear all existing RDP connections
net stop "Remote Desktop Services" /y
del /q %userprofile%\Documents\Default.rdp
del /q %localappdata%\Microsoft\Terminal Server Client\Cache\*.*
If you are staring at a Remote Desktop Connection window that reads:

"Remote Desktop Connection: An error occurred while connecting to the remote PC. Error code: 0x904. Extended error code: 0x7." Since extended error 0x7 often means "cannot store

You are not alone. This error is notoriously vague, often appearing when you are trying to connect to an Azure Virtual Desktop (AVD), a Windows 365 Cloud PC, or a standard Windows Server.
While standard RDP errors usually point to network issues, Error Code 0x904 with Extended Error 0x7 specifically points to an authentication and handshake failure. Essentially, your computer reached the server, but the server rejected the security credentials or the connection protocol.
Here is the step-by-step guide to troubleshooting and fixing this error. Delete all files inside the Cache folder (files

Because extended error code 0x7 points to storage control blocks, the local license store is suspect. Deleting it forces Windows to request a fresh license.
Warning: Back up your registry first.
Once you resolve error code 0x904 extended error code 0x7, use these best practices to ensure it never returns: Run these on the client (as Admin) to
Encountering a Remote Desktop Connection error is frustrating, but seeing a specific code like 0x904 with an extended error code 0x7 often indicates a precise issue rather than a generic network glitch.
What does this error mean?

In plain English: Your computer and the remote server disagree on how to securely store the connection license or negotiate encryption.