Microsoft is trying everything they can to shove down our throats their new abomination called Windows 10 AKA Squares 10. Their latest attempt was to include a downloader for the wretched thing among the recommended updates for Windows 7 and for their previous abomination, Squares 8.1. That company is so dirty that the description for the update (KB3035583) is "enables additional capabilities for Windows Update notifications when new updates are available to the user", which will fool most people into thinking it's an important update.
If you happened to install the sneaky downloader you'll notice a new icon with the Squares 10 logo on the system tray (the area on the lower right corner of the screen where the clock is). Also, if you open the Windows Task Manager (CTRL+SHIFT+ESC), you'll see the downloader's GWX.EXE process running under the Processes tab. Follow the instructions on the article below to get rid of it:
How to uninstall KB3035583 – The Windows 10 Downloader for Windows 7 and 8.1
