Microsoft Office 365

Instruction: MS Office Installation on Your Device

Office 2021 or Office 365 Pro Plus? 

Office 2021 is the latest version of familiar office applications package (Word, Excel, Powerpoint, Outlook, Publisher…) for installation on a Windows or Mac. Office 365 Pro Plus includes the same applications, but additionally

  • It has better support for parallel collaboration over documents stored in Office 365 (Word, Excel, Powerpoint).
  • It keeps getting updates that make new Office 365 features available.

Which Version to Choose?

  • If you work with Office 365 or if you work with colleagues over shared documents, we recommend Office 365 Pro Plus.
  • For shared computers (lecture halls, laboratories, gatehouses) that do not expect active collaboration over documents, we recommend Office 2021.

What's the Difference between Office 365 Pro Plus and Office 365?

  • Office 365 Pro Plus is a set of desktop applications (Word, Excel, Powerpoint…). It enables access to Office 365 files, mail, and other content.
  • Office 365 is a cloud environment available through a web browser at It includes Word, Excel, Powerpoint and Outlook, and the ability to save documents in OneDrive, Sharepoint, or Office 365 Groups.

Installation of Add-ons

It is possible to install various add-ons to the MS Office family applications (Word, Excel, Outlook, ...) that extend their functionality.

Installation of these add-ons is allowed for all users using the MS Office family's tools within MU if the following conditions are met:

  • You can install it directly from the appropriate application under Get Add-ins.
  • Users have the option to install and use add-ons only from "verified developers" or those that don't require significant permissions to use.
  • Some of these add-ons may require access to data within a document, e-mail, or other data within a computer or Office 365. Therefore, they may also have access to personal or other sensitive data in documents, e-mails, or other resources within Office 365. Anyone who installs any add-on is required first to verify who the author/provider is, what data the tool accesses, and how it handles it. It is forbidden to install and use add-ons threatening to transfer personal and other sensitive information to third parties with whom MU has not concluded a contract for the processing of personal data.


How to Get Office 365 Pro Plus?
  • Installing and using Office 365 Pro Plus requires an "A3" license. Students have the student version of this license available automatically. If you are an employee and cannot activate Office or do not have the option to download it in Office 365 (see below), set your A3 license in INET.
  • For MU computers installation ask your technician.
  • On a private computer, you cal install it by following the instructions below.
  • Office 365 Pro Plus can be installed on up to 5 computers.

Log in to Office 365 with your account, select your language (English), and click Install. The software thus obtained may not be used for commercial purposes, see license terms.

For activation of the installed MS Office package, it is necessary to sign in to Office 365. This will activate the license on your computer and at the same time deduct the free licenses in the O365 register.

If you are an employee and do not have the option to download in Office 365 (see below), set your A3 license in INET. After the permit license, it takes several hours for the change to take effect.

Uninstallation and Deactivation
If you uninstall Office on any computer, you can deactivate the license in O365. You can monitor your current status in the list of active installs.

Office on Mobile Device

You can download and install individual MS Office applications on your mobile device from the appropriate store (Google Play, App Store). How you set up access to Office 365 depends on the specific application.

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