PC owners with Windows 7 and 8.1 installed, and also use assistive technology, can still get Microsoft's upgrade to Windows 10 for free beyond the July 29 deadline. The company has set up a web page with a link to a client that will download the OS to the PC.
In a blog post, Microsoft stated:
With the end of the free Windows 10 upgrade offer today for the general public, we want to remind customers who use assistive technologies that the deadline will not apply to you. As promised, we are rolling out a new webpage, starting today, to help customers who use assistive technologies to navigate the process and access the free upgrade offer extension for Windows 10.
With more than a billion people with disabilities in the world, we are excited for customers to experience the new accessibility features in the Windows 10 Anniversary Update. These include improving the screen reading experience with Narrator, the accessibility of experiences and apps like Microsoft Edge, Mail and the Start menu, as well as better tools and resources for developers to build more accessible apps and experiences.
The web page itself also has some additional information on this extension to the free Windows 10 offer, including this note:
We have not announced an end date of the free upgrade offer for customers using assistive technology. We will make a public announcement prior to ending the offer.
It's not immediately clear just how Microsoft determines how an older PC uses assistive technology, and thus is eligible for the extension to the company's free Windows 10 upgrade.