This is the most critical issue. Since extended support ended in October 2020, Microsoft no longer issues security patches for Office 2007. This means:

With pre-activation, you bypass the "Activation Wizard" and the need to enter a 25-digit product key manually during or after installation. Key Features of the 2007 Suite

MS Office 2007 remains a marvel of optimization. On an air-gapped computer (never connected to the internet), an old laptop, or a virtual machine running Windows 7, a high-quality pre-activated copy offers incredible value.

However, none of these are . They are replications, not the genuine article.