Have you experienced slow connection when your Windows 10 is performing Windows Update? It could be that your Windows Update is consuming a lot of bandwidth. We can change the settings in your Windows 10 to limit Windows Update Bandwidth.
Limit Windows Update Bandwidth Through Windows Settings
This step is the easiest step to limit Windows Update Bandwidth.
Open Windows Settings. You can either perform a shortcut Win + I or going through Start then Settings icon.
In Windows Settings, navigate through:
Update & Security > Windows Update > Advanced options > Delivery Optimization > Advanced options
Under Download Settings, put a check on both Limit how much bandwidth is used for downloading updates in the background and
Limit how much bandwidth is used for downloading updates in the foreground.
Move the slide bar depending on how much bandwidth will you provide your Windows Update. If you do not want to have a slow connection, put 20%.
Through Group Policy
I will not recommend these steps because they are more advanced. However, there are few more settings you can change in the Group Policy.
Open the Local Group Policy Editor by running the following command in the Run window or from the Start: gpedit.msc
In the Local Group Policy Editor, navigate through:
Computer Configuration > Administrative Templates > Windows Components > Deliver Optimization
Open the Maximum Download Bandwidth (in KB/s) settings. Select Enabled and input the download bandwidth in KB/s under Maximum Download Bandwidth (in KB/s). This will limit by KB/s and not in percentage.
I prefer the former (via Windows Settings) than the latter (via Local Group Policy Editor) because it is based on percentage. However, I gave you two options in Windows 10. Whichever you choose will work fine.
That is it! That is how you limit Windows Update bandwidth in Windows 10. You will not experience any bandwidth issues when your Windows 10 is updating. Not unless, you have connectivity issues with your Internet.