: You can attempt to download the installer through the Microsoft Office 2010 page by entering your valid product key. Installation Process :

Insert your installation disc or run the downloaded SETUP.EXE file. Enter your when prompted.

Accept the license terms and follow the on-screen prompts to complete the setup.

Activate the software over the internet once the installation is finished. Archive & Alternative Sources

Microsoft Office 2010 Professional Plus reached the end of its support lifecycle on October 13, 2020. Official downloads from the Microsoft website typically require an existing product key. Official Download & Installation

Install 32-bit (default) Office 2010. Insert the Office 2010 disc into the drive. If the setup wizard doesn't start automatically, Microsoft Support Download Office 2010 - Microsoft

Because Microsoft has retired this version, many users rely on digital archives for original ISO files. Install Office 2010 - Microsoft Support