Solved Will upgrading to Win10 deactivate Win7 license?

[S0meb0dy]

I have a Win-7 Pro laptop. I have a duplicate of the system drive for backup purposes.
If I were to accept the update to Win 10, would I be able to use Win-7 (restored from the duplicate drive), or would the fact of updating the OS mark my existing Win-7 license invalid (somewhere inside MS' servers), and the system will start barking some time soon that it is not "genuine", etc.?

(Sorry, if this topic exists buried somewhere: I tried to search for it but couldn't find.)

 

[S0meb0dy]

And about 10 minutes after posting this question, I finally found the thread that answers my question:
http://www.sevenforums.com/windows-updates-activation/397779-7-10-back-7-eventually-10-a-2.html

Unfortunately, in this forum, it is impossible do delete your own thread.