Windows 10: Can't reactivate/upgrade Windows

So, this story starts a while back

I first got a Windows 7 laptop, then I upgraded to Windows 10 for free when it came out. I then got a cheap desktop, swapped out the hard drive and had to reactivate Windows 10. Now I have a more expensive desktop, with everything new because my old desktop stopped working, I was able to recover the key and activated my new desktop just fine. To end this story, my motherboard broke and I had to get a replacement. When I set everything, Windows deactivated itself, I went through troubleshoot menu and said I changed hardware but it said it couldn't reactivate it, I called the Microsoft support and they basically said I have to have the original Windows 7 key (which I obviously don't have) or have to buy a new key. I then learned my school provides free Windows 10 Education Edition keys so I got one of those and tried activating it using that key, it said I needed to upgrade Windows and it would restart, so I said ok, and a couple hours later it was back up but still said it wasn't activated, I tried 2 more times and both after several hours of it "upgrading" it still said it wasn't activated

:)

 

Does Windows 7 require reactivation if...

He is using AMD already. He wants downgrading to AM3. Don't know why??

If you change HDD + RAM simultaneously, Windows 7 needs to be reactivated. Only HDD cloning shouldn't require reactivation. As you are changing mobo + HDD (prehaps RAM upgrade too), you will surely require reactivation. If you have genuine license, you should reinstall OS (you might use Windows Easy Transfer). If you don't want to reinstall, you need to uninstall HDD, interfaces/system devices, and numerous other drivers (USB, HID, Portable devices, etc.), else your OS will be unstable.
I will highly recommend to reinstall Windows 7 and enjoy your migration.

A simple trick might be like this to avoid reactivation:
1. Clone your HDD first and boot into Windows
2. Use it for at least one week
3. Replace mobo only without any other hardware change/upgrade and boot
4. Use it for at least one week
5. Do any other upgrade (RAM, Graphic card etc.)

Don't do two simultaneous downgrades/upgrades to avoid reactivation.

 

Does Windows 7 require reactivation if...

Then why does it say fs/ft i7-920 in his tag and he wants to downgrade to am3 system? to go from a am2/2+ to am3 isn't a downgrade last time I checked

 

windows xp installation and dual core am

could someone please list the steps they follow to install windows with a dual core processor and windows xp service pack to. I'm reletively new to amd dual core and i feel i'm missing a step. All help will be appreciated. thanx