Searching for a "Windows 9 ISO" is a bit of a tech rabbit hole, primarily because Microsoft never officially released a Windows 9
You may find "Windows 9" downloads on sites like the Internet Archive or third-party forums, but these are . They are typically: How to Verify Your Windows ISO is Genuine windows 9 iso file verified download
Microsoft chose to skip the number 9 to emphasize that Windows 10 was a "new generation" of the operating system, rather than a minor incremental update. Technical Rumors: Searching for a "Windows 9 ISO" is a
Though Microsoft never gave a single definitive reason, several theories exist: Microsoft released: Windows 7 → Windows 8 → Windows 8