GWX Control Panel v1.4 | 1.61 Mb
GWX Control Panel (previously named GWX Stopper) is a free program that you can use to configure and exit the "Get Windows 10" system tray application which continually pops up on PCs that are still running Windows 7 and Windows 8. It can also prevent unintentional Windows 10 upgrades from occurring via Windows Update. GWX Control Panel really works, is safe and easy to use, and gives you the option to re-enable the icon and upgrade notifications if you're ever ready to move forward with Windows 10.
UPDATE (October 20, 2015): Version 1.4 is now live. This fixes some of the more stubborn Windows Update issues folks have reported and *hopefully* finally fixes the dreaded Windows 10 "reschedule or upgrade now" cycle that some users have found themselves in. If you are one of these people I'd like to hear if we've fixed the problem for you.