Logon Attemp Failed RDP to Azure VM

Hi Giovanny Hernandez

Thank you for reaching out on Microsoft Q&A. After reviewing your case, we identified that the issue is related to the Windows Server Core image used during the VM deployment.

Issue explanation:

This behavior occurred because the virtual machine was deployed using the Windows Server Datacenter – Azure Edition (Core) image. Server Core installations do not include the Windows Desktop Experience (GUI) and are intended to be managed through command-line tools, PowerShell, or remote management utilities, rather than a full graphical RDP session.

As a result, when attempting to connect via RDP, the connection fails and the Boot Diagnostics display appears stuck at LogonUI.exe / Ctrl+Alt+Del. This is expected behavior for Server Core and is not related to a password mismatch or any VM-level issue.

Microsoft provides two Windows Server installation options in Azure VM images:

1. Server Core

• No graphical user interface (GUI) or Windows Explorer
• Managed using CMD, PowerShell, or remote administration tools

2. Server with Desktop Experience

• Includes the full Windows graphical desktop
• Supports standard GUI-based RDP sessions

In this case, the selected image was Server Core, which does not support a full desktop login via RDP.

To resolve the issue, the VM must be redeployed using a Windows Server image that includes the Desktop Experience.

References:

What is the Server Core installation option in Windows Server?

Server Core vs Server with Desktop Experience install options

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