Make Windows 10 Stop Downloading
If you want a really simple and easy way to get rid of the “Get Windows 10” icon and stop your PC from downloading Windows 10, you can download a little piece of freeware called GWX Control Panel from a developer that isn’t happy with this either.
Download it, run it, and then click the “Disable Get Windows 10 App (permanently remove icon)” button.
You’ll have to reboot, but at the end, the icon will be gone and your computer shouldn’t get the upgrade. And luckily you can click those buttons again to put things back the way they were.
Alternative Option: Set Windows Update to Not Download Things
If you set Windows Update to notify you but don’t download anything, Microsoft won’t automatically send the updates down.
Please note that this is a bad idea for security reasons, so unless you have a metered connection and don’t have the bandwidth to download updates, you probably shouldn’t do this.
You can simply go into Windows Update and click on Change settings, and then change the drop-down to “Check for updates but let me choose whether to download and install them”.
If you do this, please make sure that you keep up with installing updates.