activation of Windows 7 after windows 10 degradation

I have successfully upgraded to windows 10 Windows 7 ultimate (authentic product) and gave a try, a few reasons I the gradient to the previous version of windows 7 and before degrading, I saved my product key using an Online application (while under windows 10).

I had downgraded successfully to windows 7 and all my files and settings have been restored, but my problem is that degrade after he said your windows is not genuine and activate it now, I entered the key and it says "the product key you entered does not seem a valid windows key" once I searched my product key using several applications available online and this time I got a different key , all applications have shown the same key (degrading the second key was found using windows 7 after), I entered the key, but it shows an error like (screenshot below).

I have a lot of difficulties to activate my windows 7, please help me.

Thank you

How to: fix Windows 7 or Windows 8.1 active or true reports after cancellation of Windows 10

Tags: Windows

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