Today marks the tenth anniversary of Windows 10, which was unveiled on September 30, 2014. Microsoft is offering a complimentary copy of the Windows 10 Field Guide to users in celebration. A new free newsletter is available for subscribers, providing three time-saving tips every Friday and complimentary copies of Paul Thurrott's Windows 11 and Windows 10 Field Guides. Windows 10 was designed to operate across various devices and was announced as a free upgrade for users of Windows 7, 8.1, and Windows Phone 8.1 in January 2015. It was officially released on July 29, 2015, and received positive reviews for its adaptability and user-friendly experience, addressing design flaws from Windows 8. A free copy of the Windows 10 Field Guide is available at Leanpub until August 1, 2025.