Where Can I Buy Windows 7 Professional Link

Microsoft officially discontinued retail sales of in 2013 and ended all extended support in January 2020. As a result, you cannot buy it directly from the Microsoft Store anymore.

Because official production has ceased, available stock is limited to "new old stock" or used licenses. Buy Windows 7 Professional 32-Bit SB-Version at Ubuy Kenya where can i buy windows 7 professional

To obtain a legitimate copy today, you must look toward secondary markets and third-party retailers. Where to Buy Windows 7 Professional Microsoft officially discontinued retail sales of in 2013

This is the original version of Bvckup. It was written for Windows XP, last updated in 2010 and it's now well behind times. Use at your own risk, basically.
It has been superseded by Bvckup 2 - a faster and significantly more refined revision of the same idea. Have a look.
http://www.bvckup2.com