Cannot activate Office 365 on my Mac

To solve the activation problem, please follow the steps below:
  1. Choose Force Quit from Apple menu to close all MS Office Applications
  2. Download and run the License Removal Tool by following the guideline at
  3. Remove the following files from your Mac (You will need local admin privileges to make changes to your Keychain Access):
    1. Go to Finder => Applications => Utilities => Open Keychain Access.
    2. In Keychain Access, delete the following files:
    3. – Microsoft Office Identities Cache
      – Microsoft Office Identities Setting
      – Microsoft Office Ticket Cache
  4. RESTART your Mac and open any Microsoft Office applications for reactivation.