HOW BIG IS THE AUDIENCE: Windows holds a 75% share of the 1.3-2 billion PCs in operation on the planet. This version could build market share quickly as Windows 11 will be offered as a free upgrade to existing Windows 10 users. WHO ARE WE TARGETING: _Windows For Dummies _is the recognized go-to guide for new and learning Windows users. It assumes no prior experience with the system and blends the bare basics with intermediate tasks a PC user needs to do from time to time to keep their machine running smoothly and securely.