I’ve been asked many times by Windows 7 and Windows 8.1 users, how to block an unsolicited upgrade to Windows 10. At least I found a third party tool, that assist users to block a Windows 10 upgrade on Windows 7 / Windows 8.1.
Only owners of Windows 7/8.1 Professional and Enterprise (or Windows 7 Ultimate) are able to use group policies to block Windows 10 upgrade. For users of Windows 7 Home Premium or Windows 8 core, there is no easy solution available. You need to do some registry hacks, because Microsoft refuses till now, to give us a reliable Windows 10 upgrade blocker tool.
Gladly somebody wrote GWX Control Panel, a tool to do the registry stuff for you and block Windows 10 upgrade. The author of GWX Control Panel just released version 1.4, which was enhanced to hide Get Windows 10-App, block Windows 10 upgrade in Windows Update and also wipe downloaded files.
GWX Control Panel may downloaded for free from this web site. After downloading, the tool can be used without installing – it only needs administrator rights. Then a window (shown above) allows to switch each option on and off. The screenshot shown above was taken on a Windows 8.1 Core system, where I have blocked Windows 10 upgrade, using the .reg-file described here Windows 10: Upgrade per .reg-Datei blocken in my German blog. (via)