Have Windows 11 upgrade questions? Here's everything you need to know - before you make the leap
Rustam Kaberov/Getty Images Windows 11 is about to celebrate its fourth anniversary and runs on hundreds of millions of PCs worldwide. When it debuted in 2021, the new version of Microsoft's flagship operating system was arguably an incremental change to Windows 10, with a fresh look and feel on top of core code that was practically identical to its predecessor. The more important change, it turned out, was a new set of hardware compatibility requirements that made many existing PCs ineligible