There are those who are not interested in upgrading to Windows 10 from 7 or 8.x and they offer a variety of reasons as to why they will not.  Recently two objections have been resolved, with the newest Media Creation Tool from Microsoft you are now able to do a clean install, using your Win7/8.x key during the installation process.  As well Scott has shown how you can force a roll-back if you encounter difficulties after the upgrade.

If you still have no interest in the new OS, then take a gander at these tips from The Register which will disable those annoying popups.  By making these changes to the registry you will retain the ability to recieve updates via Microsoft Update, you just will not see the nag screen asking you to upgrade to Win10.  They also mention a way to stop the update files from being downloaded.  You can also just choose to ignore this until Microsoft's stated deadline of  July, at which point the popup should disappear as well.

"If you're using a PC running Windows 7 or 8, you may be getting a little sick of endless popup screens telling you to upgrade to version 10. And you may be worried about inadvertently installing the upgrade as part of a security update."

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