No. A Confirmation Code is tied to a specific Installation ID, which is unique to your computer's hardware + Product Key combination. It will not work on another PC, even with the same Product Key.
You reach Step 3 only after you have:
The Confirmation Code is provided in real-time by Microsoft’s automated system or a support agent. Step 3 Enter Your Confirmation Code Here Office 2007
Since the phone lines for Office 2007 are mostly deactivated, you have to trick the system. Here is the fix:
If you’ve recently tried to install or reactivate Microsoft Office 2007 and found yourself staring at a box labeled "Step 3: Enter Your Confirmation Code Here," you might be feeling a bit lost. Feature: Confirmation Code Verification for Office 2007 Q4:
You have your Product Key (the 25-character code on the sticker), but this window is asking for something different: a Confirmation Code.
Don’t worry. You don’t have a broken copy of Office. You’ve simply walked into one of the most infamous activation loops in Microsoft history. Here is exactly what that screen means and how to get past it. Entered your 25-character Product Key
The first step is to ensure that the product key has been entered correctly. A common mistake is typing the key incorrectly, especially when the key is long and complex. Users should double-check their product key and re-enter it carefully.