: Microsoft officially recommends using your original installation disc if you still have it.
Sites like host copies of Office 2010 Professional Plus (Trial versions). You can download these legally to evaluate, but you still need a valid product key to activate beyond the 30-day trial. Microsoft Office 2010 Iso
The short answer is Microsoft officially ended support for Office 2010 on October 13, 2020 . As part of this "end of life" transition, Microsoft removed direct download links for the Office 2010 ISO from its main website. Today, the only official ways to access the installer are: Microsoft Office 2010 Iso