Resetting Office for Mac License and Sign-In

Summary

Instructions on clearing license and activation files stored in macOS system folders that may prohibit activation and use of Office for Mac apps.

Body

Issue/Question

I cannot activate Office 365 on my Mac.

Environment

  • macOS
    • Office 365 suite

Cause

The license file for Office 365 may have been corrupted. Resetting the license is needed for WKU account activation.

Resolution

WKU Students and Employees are allotted five licenses to activate Office on both personal and WKU-owned devices. To check your current count of licenses in use and to deactivate from any unneeded devices, reference this article.
  1. Download and run Office Reset tool attached to this article as a file.
  2. When prompted to select a package(s) to install, choose Reset License and Sign-In. Any other options may result in removal of apps and potential data loss.
  3. Work through the Reset tool prompts.
  4. When finished, open an Office 365 app (Excel, Outlook, PowerPoint, or Word).
  5. You will be prompted to activate the 365 suite. Enter your WKU account information.
  6. Once activated, Office 365 apps will be fully usable.

Details

Details

Article ID: 3714
Created
Wed 12/9/20 3:56 PM
Modified
Fri 2/6/26 4:16 PM

Related Articles

Related Articles (2)

Deactivating Microsoft 365 Licenses
Instructions on deactivating Microsoft 365 licenses so you can install it on a different device.
Repeatedly Requesting Keychain Access
Instructions for allowing Keychain Access to Office apps on macOS computers.

Attachments

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Microsoft_Office_Reset_2.0.0.pkg Computer

Wed 10/15/25 3:15 PM
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