can't use vista cd key

Retail keys are tied to only one PC. You cannot transfer the key to another PC.

 

You need to login to view this posts content.

 

I stand corrected. Here is an excerpt of the Vista EULA

Code:

15. REASSIGN TO ANOTHER DEVICE.
a. Software Other than Windows Anytime Upgrade.  You may
           uninstall the software and install it on another device for your 
           use. You may not do so to share this license between devices.

In addition, it appears you are also allowed to make a one time transfer to a third party.

Code:

16. TRANSFER TO A THIRD PARTY.
a. Software Other Than Windows Anytime Upgrade.  The first user of
          the software may make a one time transfer of the software, and
          this agreement, directly to a third party.  The first user must
          uninstall the software before transferring it separately from the
          device.  The first user may not retain any copies.

WOW, this was news to me. Thanks FixedBit.

 

the key is registered on microsoft servers with your old hardware.
to unlock it, u have to follow the vista instructions to activate by phone.
vista will give you a key that u'll have to use with the automatic phone service activation. after u'll enter the key with your phone, they'll give u a key to unlock your licence and your vista will be activated again.