my hard drive was corrupt and I got a new one. Unfortunately I couldnt find my recovery disk and borrowed one from someone for Windows 7. Now my computer is telling me the disk was not meant to create but to update and I need to enter a new product number. Can someone help me?
You are trying to fresh install the operating system with the wrong product.
You need the full install version, not the update version. You need a different disk to install it from scratch.