[Security] The January 2026 security update KB5073455, released on January 13, 2026, addresses connection and authentication failures in Azure Virtual Desktop and Windows 365. After installation, users may experience credential prompt failures during Remote Desktop connections using the Windows App on certain Windows builds.
⚠️ Known Issues: Connection and authentication failures in Azure Virtual Desktop and Windows 365
Symptoms: Credential prompt failures during Remote Desktop connections using the Windows App on Windows client devices.