Rebuilt your PC? You may not need to buy a new Windows key.
www.tomshardware.com
Found the above . I dont plan to start fresh, as in reinstall etc. Can you still get to this activation page? Reset the PC sounds destructive
How to Transfer a Digital Windows License to a New PC
If your Windows license is "digital," which means that it's tied to your Microsoft account, entering the product key into a new PC will not work. The new computer won't activate. Instead, you must follow the steps below.
Note: We previously recommended that you remove the old PC from your Microsoft account before transferring your license and this worked for us in tests. However, we heard from some readers that they were unable to activate their new computers after this or to get the old PC back on license. So don't try to deactivate your old PC, at least until you have successfully activated the new one.
1.
Reset Windows or completely erase the drive on your old PC. See our tutorial on
how to reset Windows 10 or 11. If you don't do either of these things, the computer will still be seen as registered with Microsoft and could prevent you from being able to activate the same key on the new PC.
2.
Install Windows 10 or 11 on the new PC, without entering a product code during the install process. When prompted, you just click "I don't have a key." During the install process, make sure you
log in with the same Microsoft account you have on your old PC.
3.
Launch the Activation Settings menu. You can get there by searching for "activation" in the search box.
4.
Click the Troubleshoot button.
5.
Click "I changed hardware on this device recently." Do this, even if you are using a completely new PC.
A window with a list of PCs you have signed into appears. If the current PC is not listed, make sure you are logged into it with the same Microsoft account as your old PC. If this still does not work, it's possible that the version you are on is not compatible with your digital license.
6.
Locate the name of the new PC and
click on it
7. Check "This is the device I'm using right now" and click Activate.
Your new PC should now be activated. If you log into the old PC again (or have it running while you do this), you could have issues if it tries to reactivate itself.