Windows 10: What are the requirements for reactivating Windows?

What are the requirements for reactivating Windows? OS on my PC is OEM. Have to replace its motherboard. What do I have provide to Microsoft for reactivating the OS? Thank you.

:)

 

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...

Someone correct me if I am wrong, but I don't think its going to ask you for a key. If anything it will ask you to reactivate, which you can do online, or at the worse- over the phone. Should be no issue.

I have changed MBs in the past (and been too lazy for a fresh install) and Windows Vista and 7 RC updated the drivers and did not even require 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