You can use Microsoft 365 Activation Troubleshooter to fix Microsoft 365 & Office subscription activation issues in Windows ...

Bulk licenses to companies do not contain Windows Product Activation (WPA). When Windows is installed, WPA combines the product ID with the identification data and serial numbers of the components ...

Keep in mind that it's always best to use an official Windows product key for activation ... press Windows + X or right-click ...

Unlike the retail versions of Office 2007, copies installed using volume license keys -- the typical way large organizations purchase Microsoft's software -- will simply skip product activation ...