Windows constantly downlods updates in the background. Here is a trick to disable Windows 10 updates and minimize Windows 10 data usage.

Group Policies

On the Configure Automatic Updates dialog, select Enabled in the left pane, in the Options section click on the Configure Automatic Updating Combo Box and in the dropdown list select Notify for download and notify for install.

No, Let’s disable Windows 10 updates: If the status for this policy is set to Disabled, any updates that are available on Windows Update must be downloaded and installed manually. To do this, search for Windows Update using Start.

If this policy is set to Disbled; when you open Settings > Update & Security > Windows Update > Advanced Options, you will find a grayed out Notify to download button and a notification reading Some settings are managed by your organization.

When this policy is set to Disabled, you will still receive a notification when updates are available from where you will be able to manually download and install Windows 10 updates.