Microsoft today released a new update for Windows 7 and 8.1 PCs, which finally removes the Get Windows 10 (GWX) app. The move comes almost two months after the free upgrade period for Windows 10 ended on July 29.
KB3184143 "removes the Get Windows 10 app and other software related to the Windows 10 free upgrade offer that expired on July 29, 2016." It's not exactly clear what the "other software" is, but your PC will no longer be prepped for an expired free upgrade offer. You can find more information in Microsoft's article here.
If you're not familiar with GWX, it was one of the most despised pieces of software during the free upgrade period for anyone that wanted to stick with Windows 7 or 8.1. The app pulled every trick imaginable to get users to upgrade, including changing it so that closing it confirms the upgrade (rather than cancelling it), showing an alert icon and a countdown to July 29, and more.
According to ZDNet's Mary Jo Foley, you can still grab a free upgrade if you want one. A Windows 7 or 8.1 key should work with a Windows 10 installation. Also, if you upgraded your PC before the free upgrade period ended and rolled back, your PC is licensed for Windows 10, so you can still upgrade for free.