I thought it may be due to the license still being 'bound' to the stolen laptop, so I purchased another license, still shrink wrapped. However, on this brand new laptop that replaces one that was stolen, after having had problems activating Windows (resolved by activating after a phone call) I'm now having a problem installing Office 2007 Pro!! I have 2 other laptops with the exact same setup Windows 10 Pro/Office 2007 working perfectly fine, along with various old versions of Visual Studio.
I have Windows 10 Professional 64bit on a Lenovo laptop on which I need to run Office 2007 Professional - and not anything else, for compatibility purposes.