Many users seeking NetBEUI are actually attempting to enable legacy file sharing (SMB). Modern Windows (10/11) defaults to SMB 3.1.1, which requires TCP/IP. While NetBEUI can carry NetBIOS frames, the modern SMB stack is hardcoded to function over TCP/IP. Therefore, installing NetBEUI does not inherently "fix" file sharing issues; the underlying SMB configuration must also be downgraded to allow NetBIOS over NetBEUI.

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Old operating systems (like Windows 95, 98, or NT) use Version 1 of the Server Message Block (SMB) protocol to share files. Windows 10 and 11 disable SMBv1 by default because it is highly vulnerable to hacking. If you must connect to an ancient machine, you can temporarily turn it back on.

Modern Windows operating systems block unsigned or legacy XP drivers from loading. You must disable Driver Signature Enforcement to allow nbf.sys to initialize.

Microsoft officially . In its place, NetBIOS over TCP/IP (NBT) became the standard transport, allowing legacy NetBIOS applications to function over modern routed networks.

For Windows 10 and 11 setups that absolutely require raw non-routable packet handling, third-party encapsulation is the most reliable modern solution.

If your legacy equipment or software relies on NetBIOS name resolution rather than the raw NetBEUI transport protocol, you can force Windows 11 to emulate this behavior over a standard TCP/IP connection.

Copy the file to your hidden system configuration directory:

Would you like step-by-step instructions for setting up a Windows XP VM with NetBEUI on Windows 11?