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Microsoft Office LTSC 2021

Microsoft Office LTSC 2021 is only recommended for computers that are shared by multiple users and should only be installed by IT Staff on university-owned computers.

Individual users should install the Microsoft Office 365 applications.

Microsoft Office LTSC (Long Term Servicing Channel) Professional Plus 2021 is a perpetually licensed version of Microsoft Office that allows users install a collection of software developed by Microsoft for productivity, collaboration, cloud storage, and more. Microsoft supports each LTSC release for five years.

Microsoft Office LTSC Professional Plus 2021 includes the following:

  • Outlook
  • Word
  • Excel
  • PowerPoint
  • OneNote
  • Teams
  • Publisher (PC only)
  • Access (PC only)

This software can only be installed on computers owned by the UW.

How to Get Microsoft Office LTSC 2021

For Windows, Microsoft Office LTSC Professional Plus 2021 is installed using Click-to-Run installation technology. Microsoft does not provide an installer for download; instead, a computer administrator will need to use the Office Deployment Tool (ODT) to install Office LTSC 2021 and any stand-alone Office applications (e.g. Visio or Project).

Microsoft Office LTSC 2021 is not supported by UW-IT and is intended to be installed by IT Staff only.

For Mac installation, click here.

Download Office Deployment Tool

License Details

The UW’s Microsoft Office LTSC Professional Plus 2021 site license:

  • Provides Office applications for installation on UW-owned computers.
  • May not be used on personal devices.
  • Requires connectivity to the UW Campus network for periodic license activation and validation.

Additional Information

Microsoft Office LTSC FAQs

Where can I get help using this software?

  • UW-IT does not support Office LTSC 2021
  • Microsoft will provide support and updates until Oct 13, 2026
  • Microsoft Office Support

On how many devices can I use the Microsoft 365 Applications?

  • There is no device limit, however the software can only be installed on computers owned by the UW.

Can I use this on computers not owned by the UW?

  • No

What happens to the software license when an employee or student leaves?

  • The license is associated with the device, but may only be used by current employees or students. Office LTSC must be removed from the device before it leaves UW ownership.

How do I install Office LTSC 2021 for the Mac?

Where can I download Office 2016?

  • Mainstream support for Office 2016 ended on October 13, 2020 and, as such, is no longer provided by UW.

Quick Facts

Available for

  • IT Staff


PC, Mac




  • Free
  • Productivity

Documentation and Support