Since this is "legacy" software, your options are limited to third-party retailers:
Windows 7 Ultimate is no longer sold directly by Microsoft, as the operating system reached its official . However, you can still find authentic product keys through specialized software resellers and second-hand marketplaces. Where to Buy Windows 7 Ultimate 64-bit windows 7 ultimate 64 bit buy online
: Microsoft no longer provides security updates or technical support for Windows 7. Using it online makes your system significantly more vulnerable to malware and hackers. Since this is "legacy" software, your options are
: Can be transferred to a different computer if you upgrade later. Using it online makes your system significantly more
: Sites like MyChoiceSoftware , Royal Discount , or Kinguin often carry older licenses. These are typically "Digital Downloads" where you receive the product key via email.
If you need Windows 7 for a specific legacy application, consider: