If you're currently using any version of Windows other than Windows 11, then your system is either already unsupported (Windows XP, Vista, 7, 8.1), or soon to become unsupported (Windows 10). And Microsoft's best advice for anyone in that situation is "move to Windows 11 by buying a new PC".

Windows 11 adoption has been way slower than Microsoft would like, no doubt, and part of the reason for that is that some PCs (particularly older models) can’t upgrade due to system requirements – and if you fall into that boat,

Microsoft is pushing users to buy new PCs to get Windows 11. Despite Microsoft's efforts, people prefer to dodge Windows 11's system requirements over buying new PCs. Microsoft's attempts to get people to ditch perfectly good hardware are wasteful.