Windows 10 creating multiple NetBIOS sessions to Microsoft

Windows 10 Creating Multiple NetBIOS Sessions to Microsoft

If you are a Windows 10 user, you may have noticed that your computer is creating multiple NetBIOS sessions to Microsoft. This may seem concerning, but it is actually a normal behavior of the operating system. In this article, we will explain what NetBIOS is, why Windows 10 creates multiple sessions, and how you can manage them.

Understanding NetBIOS

NetBIOS (Network Basic Input/Output System) is a programming interface that allows applications on different computers to communicate over a local area network (LAN). It provides services such as file sharing, printer sharing, and name resolution. Windows 10 uses NetBIOS for various network-related tasks.

Why Windows 10 Creates Multiple NetBIOS Sessions

When your Windows 10 computer connects to the internet or a local network, it establishes NetBIOS sessions with other devices, including Microsoft's servers. These sessions are used for various purposes, such as checking for updates, syncing data, and accessing online services.

Windows 10 creates multiple NetBIOS sessions to Microsoft for several reasons:

• Windows Updates: One of the main reasons for multiple NetBIOS sessions is Windows Updates. Windows 10 needs to communicate with Microsoft's servers to check for updates and download them. Each session represents a separate connection for this purpose.
• Syncing Services: Windows 10 offers various syncing services, such as OneDrive, which require establishing NetBIOS sessions with Microsoft's servers. These sessions allow your computer to sync files, settings, and other data with the cloud.
• Online Services: Microsoft provides various online services, such as Microsoft Account, Office 365, and Cortana. These services require establishing NetBIOS sessions to function properly.

Overall, the multiple NetBIOS sessions created by Windows 10 are intended to enhance your user experience by enabling various network-related functionalities.

Managing Multiple NetBIOS Sessions

If you are concerned about the number of NetBIOS sessions created by your Windows 10 computer, you can manage them using the following methods:

1. Disabling Unnecessary Services

Windows 10 offers a wide range of services, some of which may not be required for your specific needs. Disabling unnecessary services can help reduce the number of NetBIOS sessions.

To disable unnecessary services:

1. Press Win + R on your keyboard to open the Run dialog box.
2. Type services.msc and press Enter. This will open the Services window.
3. Scroll through the list of services and identify the ones that you do not need.
4. Right-click on a service and select Properties.
5. In the Properties window, change the Startup type to Disabled.
6. Click Apply and then OK.
7. Repeat steps 4-6 for any other unnecessary services.

Disabling unnecessary services can help reduce the number of NetBIOS sessions, but be cautious and only disable services that you are sure you do not need. Disabling important services may cause issues with your computer's functionality.

2. Adjusting Windows Update Settings

Windows Updates are a common cause of multiple NetBIOS sessions. However, you can adjust the Windows Update settings to control the frequency and timing of updates.

To adjust Windows Update settings:

1. Open the Start menu and click on Settings (the gear icon).
2. In the Settings window, click on Update & Security.
3. Click on Windows Update in the left sidebar.
4. Click on Advanced options.
5. Under the "Choose how updates are installed" section, you can select options such as "Semi-Annual Channel" or "Pause updates for 7 days" to control the update frequency.

Adjusting the Windows Update settings can help reduce the number of NetBIOS sessions related to Windows Updates.

3. Using a Firewall

You can use a firewall to control the network connections made by your Windows 10 computer. A firewall can block unnecessary connections and reduce the number of NetBIOS sessions.

Windows 10 includes a built-in firewall called Windows Defender Firewall. To configure it:

1. Open the Start menu and click on Settings (the gear icon).
2. In the Settings window, click on Update & Security.
3. Click on Windows Security in the left sidebar.
4. Click on Firewall & network protection.
5. Click on your active network connection (e.g., Wi-Fi or Ethernet).
6. Under the "Windows Defender Firewall" section, click on "Allow an app through firewall".
7. In the Allowed apps window, you can uncheck the apps that you do not want to allow through the firewall.

Configuring the firewall can help you control the network connections and reduce the number of NetBIOS sessions.

Conclusion

Windows 10 creating multiple NetBIOS sessions to Microsoft is a normal behavior of the operating system. These sessions are used for various network-related tasks, such as Windows Updates, syncing services, and online services. If you are concerned about the number of sessions, you can manage them by disabling unnecessary services, adjusting Windows Update settings, and using a firewall to control network connections. By following these steps, you can have more control over the network activity of your Windows 10 computer.

References