For consumer or highly isolated, managed computers that do not require SMB at all, you can disable the Server or Workstation services. You can do this manually by using the “Services” snap-in (Services.msc) and the PowerShell Set-Service cmdlet, or by using Group Policy Preferences.

Learn about the network settings on your Xbox console and common network troubleshooting tests.

Customers must either configure SMB Server to require SMB Server signing or enable SMB Server EPA to harden their systems against this class of attack.

Fixes an issue that occurs when you access shared folders in Windows 2012 R2, Windows 8.1, or Windows RT 8.1 by using SMB version 1 protocol from Windows Server 2003 R2 or Windows XP.

Describes issues that may occur on client computers that are running Windows XP, or an earlier version of Windows when you modify specific security settings and user rights assignments in Windows Server 2003 domains, or an earlier version of Windows domain.

To have us fix this problem for you, go to the "Fix it for me" section. To reduce the risk of this issue, we recommend that you configure environments that run Windows NT 4, Windows 2000, Windows XP, and Windows Server 2003 to allow the use of NTLMv2 only.

There are two methods to work around this issue. Use one of the following methods, as appropriate for your situation. Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly.

Find out how to fix network connectivity problems when using Xbox multiplayer and chat features on Windows 10/11.

Resolves a vulnerability in Windows that could allow remote code execution if an attacker sends specially crafted messages to a Microsoft Server Message Block 1.0 (SMBv1) server.

To resolve this issue, install update rollup 2984005, or install the hotfix that is described in the "Hotfix information" section. For more information about how to obtain this update rollup package, click the following article number to view the article in the Microsoft Knowledge Base: