Office 365, Office Software Installation / Activation / Troubleshooting

Office 365 installation instructions, troubleshooting for windows, troubleshooting for macs, and other common problems.

Installation and Activation instructions for Office Software from Office 365:

Office 365 Software Installation Instructions

Troubleshooting Office 365 Install on Windows Machines:

  • Use the Microsoft Support and Recovery Assistant for Office 365:

Log into the Office 365 Portal , click on "Install Office Apps" but click on "Other install Options." Select "Tools & add-ins" from the left navigation bar. Then under "Microsoft Support and Recovery Assistant for Office 365" click the "Install" link. Then run the Assistant.

Troubleshooting Office 365 Install on Mac Machines:

  • Use the Uninstall Office downloads found on these Microsoft articles: 

  • Delete previous installations from your machine:

This is particularly important if you get an error message during the installation.

    1. Delete the installation file you download from the Office 365 portal (if there are multiple files, delete those as well).
    2. Empty the trash.
    3. Restart your Mac
    4. Log back into https://portal.office.com and try the download and installation again.
    5. Once the file is downloaded, go to Finder and Right-click to OPEN it (see below).

Office 365 Open Fiel

Note: Make sure you have a good internet connection. Even after the initial file is downloaded, Office is downloading more files in the background.


Other common problems:

Blank screen on Office 365 portal or only have Edit permission on your documents:

You may not be licensed for Office 365 - active faculty, staff, and students are eligible. If you are part of one of these groups, and there is no Install option on the Office 365 page, please contact the Technology Services Help Desk.

Repeated prompts to Activate or Login when using netid@illinois.edu:

The most common fix is to check that Time/Date are set automatically and ensure that the person is logged into the software.

The second most common issue is that a netid@illinois.edu address has been used for a personal, or consumer, Microsoft Office 365 account.

To check for this issue, login on the onedrive.com site using your netid@illinois.edu address. If you are redirected to the campus Office 365 password page, but are still getting repeated login prompts, contact the Technology Services Help Desk. If you get a message that indicates your email address has been used for more than one account, or asks you to select your work/school account or personal account, you will need to log into your personal Microsoft Office 365 account and change the associated email address to one that is not netid@illinois.edu.








Keywords:office 365, office software, office activation, office install, installation failed, mac, office 2016   Doc ID:62766
Owner:Office 3.Group:University of Illinois Technology Services
Created:2016-04-18 11:08 CDTUpdated:2018-08-02 11:39 CDT
Sites:University of Illinois Technology Services
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