Windows 10 or 11 (64-bit) runs natively on 64-bit processors. Running a 64-bit application eliminates the overhead of WOW64 (Windows-on-Windows 64) emulation. Expect faster calculations, quicker rendering of PowerPoint slides, and snappier overall responsiveness.
While the 32-bit version was the recommended default for better compatibility with older add-ins, the 64-bit version of Office 2010 is better for specific power users: Ms Office 2010 Professional 64 Bit Download
Professional does not include InfoPath, SharePoint Workspace, or Communicator. For most home offices and SMBs, Professional is more than sufficient. Windows 10 or 11 (64-bit) runs natively on 64-bit processors
Because Microsoft has removed the official download links from their main servers to encourage migration to Microsoft 365, finding a clean, unmodified installer is difficult. While the 32-bit version was the recommended default
Microsoft officially ended support for Office 2010 on October 13, 2020 . Extended support ended then, meaning no more security updates. The official download links from Microsoft’s VLSC (Volume Licensing Service Center) or MSDN are no longer publicly accessible for new downloads.