It is known that you can and will be able to upgrade Windows 10 Home to Windows 10 Pro using a product key from a previous version of Windows 7, 8, or 8.1 (Pro/Ultimate), which can save you $50 to $100 in OEM upgrade fees if you buy a new PC with Windows 10 Home preinstalled.
So if you have an older system like Windows Vista or Windows XP that are not included in the offer, all you have to do is buy a cheap Windows 7 license that still allows you to upgrade to Windows 10 for free.
We searched the market and discovered the following site.
In addition to the already cheap licenses for the immediate installation of Windows 10 on your computer, it also offers incredible prices for OEM and Retail licenses for older operating systems that have the right to upgrade to Windows 10:
Some of the prices:
Microsoft Windows 10 Home (OEM/Retail) €7.90
Microsoft Windows 10 Professional (OEM/Retail) €6.40
Microsoft Windows 8.1 Professional (OEM/Retail) €5.69
Microsoft Windows 7 Ultimate (OEM/Retail) €9.99
As you will see, in addition to cheap Microsoft operating systems, you will also find cheap licenses for other software (Kaspersky, new and old Office and others)
Before it was determined that Microsoft was continuing the offer, we had reported through iGuRu.gr that we did not believe that Microsoft would stop the free distribution of the Windows 10 operating system.
We should mention that we purchased a license for Windows 7 Ultimate and it worked flawlessly. Immediately after installing and upgrading the system with the latest updates, we were able to upgrade to Windows 10 Pro without any problems.
This post was updated:
Add to that Microsoft's decision to close the backdoor that allowed free upgrades to assistive technology users without verification. So the company now states on the upgrade page that "the upgrade offer expires on December 31, 2017."
