Home Networking

Fixing SMB Share Visibility Issues After a Windows Update

If your SMB shares are hidden after a Windows update, discover practical troubleshooting steps to restore their visibility and ensure smooth network access.

3 min read
A close-up of a Windows settings screen displaying network configuration options.

If your SMB shares are not visible after a recent Windows update, it could be due to changes in network settings, firewall configurations, or SMB protocol versions. Fortunately, there are clear steps you can take to troubleshoot and restore visibility to these shares.

Why can't I see my SMB shares after the update?

After a Windows update, you may find that your SMB shares are no longer visible. This can occur for several reasons:

  • Network Configuration Changes: Updates can modify your network settings, impacting communication between devices.
  • Firewall Settings: Windows Firewall or third-party security software may block SMB traffic.
  • SMB Protocol Version: Updates might disable support for older SMB versions, particularly SMB 1.0, which is often needed for compatibility with legacy devices or applications.

Understanding these causes is crucial for diagnosing the issue.

Before you start

Before troubleshooting, ensure that you have administrative privileges on your Windows system. Check that your Windows version is updated to the latest release, as updates can vary in their impact on SMB functionality. It's also a good idea to back up any critical data to avoid potential data loss during troubleshooting.

How to verify your SMB settings

To check if the SMB 1.0/CIFS File Sharing Support feature is enabled, follow these steps:

  1. Open the Control Panel.
  2. Go to Programs > Turn Windows features on or off.
  3. Look for SMB 1.0/CIFS File Sharing Support and ensure it is checked.

If it was unchecked, enable it and restart your computer. This will help maintain compatibility with older devices that rely on SMB 1.0.

A person navigating through the Windows features to enable SMB 1.0.

Troubleshooting network settings

Verify that your network settings are configured correctly:

  1. Open the Settings app.
  2. Navigate to Network & Internet > Status.
  3. Click on Network and Sharing Center.
  4. Ensure your network type is set to Private. If it is set to Public, change it to Private.

Next, check your group policies:

  1. Press Win + R, type gpedit.msc, and press Enter.
  2. Navigate to Computer Configuration > Administrative Templates > Network > Lanman Workstation.
  3. Ensure that the policies related to SMB are set to Not Configured or Enabled.

Testing connectivity to the SMB share

To ensure connectivity to the SMB share:

  1. Open the Command Prompt.

  2. Use the ping command to test connectivity to the server hosting the SMB share:

    ping <server_ip_or_hostname>

  3. If the ping is successful, test access to the SMB share using:

    net use Z: \\<server_ip_or_hostname>\<share_name>

If you receive a prompt for credentials, enter them. If these commands succeed, your connectivity to the SMB share is confirmed.

Preventing future issues with SMB shares

To minimize the likelihood of encountering similar SMB share visibility issues after future Windows updates, consider the following tips:

  • Regularly Check Settings: After updates, verify your SMB settings and network configurations.
  • Keep Documentation: Maintain records of your network settings and any changes made during updates.
  • Schedule Regular Backups: Regular backups can help you recover quickly if issues arise.
  • Monitor Updates: Stay informed about Windows updates and their release notes, as these often include information about changes to networking features.

Conclusion

If you continue to experience issues after following these steps, consider consulting Microsoft's support documentation or reaching out to a network specialist for further assistance.