You won't find Windows 7 on the Microsoft Store anymore. Instead, your search will likely lead you to the secondary market:
: The most reliable way to get a licensed copy is to buy a refurbished business machine (like a Dell Optiplex or HP EliteDesk ) that already has a Windows 7 Pro COA sticker on the case. want to buy windows 7
So, you’re looking to buy Windows 7. Maybe you miss the translucent Aero glass, or perhaps you have legacy hardware that just won't play nice with Windows 11. Whatever the reason, finding a legitimate copy of an OS that officially "retired" years ago is a bit like hunting for a vintage car—it’s possible, but there are plenty of potholes along the way. You won't find Windows 7 on the Microsoft Store anymore
: Sites like eBay and Mercari often have "New Old Stock" (NOS)—sealed physical boxes from 15 years ago. Maybe you miss the translucent Aero glass, or