Log on to the computer.
Exit any programs that are running.
Click Start, type regedit in the Start Search box, and then press ENTER.
If you are prompted for an administrator password or for confirmation, type the password, or click Allow.
Locate and then click the following registry subkey:
On the Edit menu, click Modify.
In the Value Data box, type PartMgr, and then press ENTER.
Close Registry Editor, start the product, and then try to activate the product.
PartMgr - make sure copy and past this in your MODIFY value data, now it should pop up your activation key.