Right-click the new folder, select > Security tab, and ensure the Everyone group has Full Control (you can revert this back to standard permissions once the keys are generated).
The most common scenarios where this occurs include:
Log into the host machine via an alternate access method (Console, IPMI, or cloud shell). Right-click the new folder, select > Security tab,
authentication level:i=0 enablecredsspsupport:i:0
Then restart.
NLA is a security feature that requires the user to authenticate before a full RDP session is established. If there is a mismatch in NLA support or configuration between the RDP client and the RDP server, the handshake can fail, leading to the 0x904/0x7 error combination.
This is one of the most effective solutions for the 0x904 with 0x7 error, especially on Azure VMs or if you suspect a corrupted certificate store. It forces Windows to regenerate a new self-signed certificate for RDP. NLA is a security feature that requires the
Back up your registry first.
| Scenario | Most Effective Solution(s) | | :--- | :--- | | | 1. Run Windows Update on both client and server. 2. Configure the Firewall correctly on both machines. 3. Temporarily disable NLA as a test to identify security handshake issues. | | For Azure VMs and Certificate Issues | Rename the MachineKeys store via PowerShell and reboot. This is a surprisingly common and effective fix. | | For Suspicion of TLS/CredSSP Mismatch | 1. Run Windows Update to apply all security patches. 2. Check the TLS protocol settings in the registry on both client and server to ensure compatibility. | | For Intermittent or Server-Specific Issues | 1. Increase MaxOutstandingConnections via registry. 2. Check RdpCoreTS Operational logs in Event Viewer for specific errors. | It forces Windows to regenerate a new self-signed