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Oklahoma State University

Microsoft 365 Apps on Internet Explorer 11 - EOL

Microsoft has announced an EOL date for accessing Microsoft 365 applications and services using Internet Explorer 11. The Microsoft Teams web app no longer supports Internet Explorer 11 as of Nov 30, 2020. All other Microsoft 365 applications and services (excluding Microsoft Teams) will no longer support Internet Explorer 11 after August 17, 2021.

To continue accessing all Microsoft 365 apps and services, users will need to use the new Microsoft Edge, another supported browser, or an applicable desktop app (if available). If you have any questions, please contact the IT Helpdesk at or 405-744-4357.
Campuses Affected:
  • OSU-Stillwater
  • OSU-Tulsa
  • OSU Center for Health Services
  • OSU-Institute of Technology
  • OSU-Oklahoma City
  • Connors State College
  • Langston University
  • Panhandle State University
  • Northeastern Oklahoma A & M
  • Northern Oklahoma College at Stillwater
  • Services Affected:
    Microsoft 365 Applications and Services on Internet Explorer 11 - After August 17, 2021, users will need to use a different browser to access Microsoft 365 apps and services.
    Announcement Contact Information: