What To Do When Windows Update Uses All Your Internet Bandwidth?


Windows Update takes a lot of internet bandwidth, whether you believe or not. Sometimes, if the updates are the build releases, which often could be a few Gigabit, it could use up all your internet bandwidth to take down your network for a while. While getting updates is inevitable, here are a few tips that could help you minimize the impact of the update.

Windows 10 update 600x330 - What To Do When Windows Update Uses All Your Internet Bandwidth?

When the update already started

If the update has already begun to choke up your internet bandwidth, rather than shutting down the computer, you can suspend the svchost process to hold the update until you are ready to resume. But which one exactly since multiple svchost processes are running at any moment? It’s the one called svchost (netsvcs) that needs to be suspended.

Open Resource Monitor, sort the Image name in CPU tab, right-click svchost (netsvcs) and choose Suspend Process.

Suspend svchost netsvcs process 600x453 - What To Do When Windows Update Uses All Your Internet Bandwidth?

Confirm the action, and you will see that the process is in Suspended mode and network traffic drops down to the flat.

svchost netsvcs service suspended. 600x453 - What To Do When Windows Update Uses All Your Internet Bandwidth?

The drawback is, while you can still work on your files to get some jobs done some network-related application may be interrupted until the service resumed.

Two great network apps

Since Windows doesn’t have a built-in app or setting that can throttle particular type of network, here come two 3rd part apps to fill the gap. Unfortunately, I wasn’t able to find any free or open-sourced app that does the same as these two paid apps. If you know any, feel free to share in the comment.

NetBalancer blocks or limits internet access to any process, or set custom rules and filters based on IP, network protocol, time of day or any of the dozens of available parameters. They used to offer a free version that allows to limit up to 3 type of network processes, but not anymore. However, you can still try it our for free for 15 days. After that, it costs you about $50 to continue using the app.

2015 05 07 23 54 37 NetBalancer 8.6.3 by SeriousBit - What To Do When Windows Update Uses All Your Internet Bandwidth?

NetLimiter provides you the full network control over your computer, not only for internet usage but local area network as well, with features like:

  • Full internet bandwidth control over applications and computers
  • Powerful connection blocker
  • Long-term internet traffic statistics
  • Fully customizable behaviour using user-defined Rules and Filters
  • etc.

It offers a 30-day free trial and costs about $20 to continue using the app after the free trial.

NetLimiter internet thrott in place 600x358 - What To Do When Windows Update Uses All Your Internet Bandwidth?

Personally, I like NetLimiter a bit more than NetBalancer, though both of the apps are great at what it does. NetLimiter offers more network features, and it costs less than NetBalancer.

Change active hours

Setting up the active hours in Windows 10 makes the download only happen in the inactive window, which will minimize the impact to the whole network.

Open Settings app, go to Update & security, then Change active hours under Update settings to make sure the time range setup matches your work schedule.

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A Group Policy settings to help out

If a paid app isn’t your thing and you are still using Windows 7 or 8.1, you can try this Windows Update related Group Policy setting to remedy the situation.

Open Group Policy Editor, and navigate to the following location:

Computer Configuration / Administrative Templates / Windows Components / Windows Update

Configure Automatic Update has a few options to control how the computer receives the updates and other important downloads.

Enable the setting and choose the second option to only notify but not download the update so you have more control when to start downloading the big updates.

Configure Automatic Updates 600x554 - What To Do When Windows Update Uses All Your Internet Bandwidth?

Also, some of the websites mention this Group Policy setting that may help the situation, but I find it’s not working on my Windows 10 computer. Maybe it works in Windows 7 but not Windows 10. Feedback is also welcomed here.

The setting is called “Limit the maximum network bandwidth for BITS background transfers” under

Computer Configuration / Administartive Templates / Network / Background Intelligent Transfer Service (BITS)

Local Group Policy Editor 600x417 - What To Do When Windows Update Uses All Your Internet Bandwidth?

Disable Windows Update

Windows 10 Update Disabler is a free little tool that runs as a service at the background and terminates attempts by Windows Update to install any updates. Thanks to Winero for bringing up this tool.

According to the author, it does not rely on Windows Registry values because Windows can overwrite them anytime without your knowledge or consent. Instead, it uses an undocumented system call to check the current state of Windows Update and tries to terminate it immediately. Once started, it also disables all scheduled tasks related to Windows Update, including the task which automatically restarts your PC while you are in the middle of something important.

That’s about it for now. Hope it helps. Feel free to share your experience in the comment below to help others.

/Update on July 10, 2017/

As of Windows 10 Build 16237, you can limit the bandwidth used for Windows Update right from Settings.


  1. My internet speed has 2Mbit, and Windows Update has a negative impact on it. Whenever you have updates, I am unable to use the internet.

    The policy “Limit the maximum network bandwidth for BITS background transfers” to work on Windows 10, since the updates in “Windows Update Delivery Optimization” (P2P) were completely disabled. But that changed in the Anniversary edition and no longer works.

    But there is a policy that tends to limit the bandwidth of this type of transfer located in “Computer Configuration / Administartive Templates / Windows Components / Delivery Optimization”

    I tried several times to use NetBalancer works at first, but over time it starts to degrade overall traffic, requiring the computer or service is restarted after a few hours of use.

    • Unfortunately, Delivery Optimization is only for downloading updates from other PCs on the local network or on the internet. It doesn’t do anything when getting the updates from windows update servers. I wish it does though.

      I first used and liked NetBalancer and stopped after they took away the free edition. Then I found NetLimiter which I found works even better. I tried many options but eventually, I paid $20 to get the NetLimiter to have a reliable solution to remedy this issue.

  2. I too can no longer tolerate the bandwidth saturation from the Windows update agent.

    I recently attached my desktop Win10 system to an ethernet port on my Tomato WiFi router. Tomato is a router-centric Linux distribution that is available for a number of hardware models. I am specifically using the Shibby Tomato distribution that can be found at:


    Some have pursued Tomato “Quality of Service” (QoS) controls, but I turned instead to the “Bandwidth Limiter” found in Shibby Tomato.

    I enabled the limiter globally, then also for the “Default Class for unlisted MAC / IP’s in LAN (br0)” and set it for an up/download rate of 600 kbit/s, with a ceil of 800 kbit/s. This will limit bandwidth on the devices that are physically attached to the ethernet ports, guaranteeing remaining bandwidth for the WiFi.

    Win10’s task manager is now reporting a download rate that hovers quite close to (and sometimes slightly over) the ceil. Now when any Windows device makes excessive bandwidth demands, I have a network available to constrain all of them.

    Tomato will run on very inexpensive routers. The Linksys WRT54G can be found for around $5, and the 200 MHz MIPS processor inside it can perform this function quite well.


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