
Run Microsoft Office Installer in Compatibility ModeĪnother solution that might work on your computer is to run Microsoft Office installer in compatibility mode for Windows 8 (If you are using Windows 10). Running Microsoft office Installer with Admin Privileges has helped many users fixed the problem. Right-click on the downloaded Office Installer.exe file and click on Run as Administrator option in the contextual menu. On the next screen, click on the Repair option and allow Windows to fix and repair the faulty installation of Microsoft Office on your computer. Go to Settings > Apps > select Microsoft Office in the right-pane and click on Advanced Options link. So I downloaded and installed the latest v4.42 version (December 14, 2021).The first step would be to see if you can Repair the faulty installation of Microsoft Office on your computer by using the built-in Repair option. The release notes mentioned that Microsoft switched to a new CDN in the v4.40 release, which triggered me to try updating it manually before trying something else. So I went ahead and found the release notes of Microsoft AutoUpdate and found that it can be downloaded and installed separately from Office itself. In contrary to others on the forum, it did not fix the issue for me. Hostname:~ user$ sudo launchctl load -w /Library/LaunchAgents/.plist Hostname:~ user$ sudo launchctl unload -w /Library/LaunchAgents/.plist


Hostname:~ user$ sudo launchctl stop /Library/LaunchAgents/.plist Hostname:~ user$ sudo chown root:wheel /Library/LaunchAgents/.plist hostname:~ user$ sudo chown root:wheel /Library/LaunchDaemons/.plist

The permissions of the AutoUpdate files should be root:wheel according to the post. While searching for a solution on the Microsoft Office forum, I found a post that mentioned to check the AutoUpdate file permissions in the LauchAgents and LaunchDeamons system folder and reload it. The MAU version that had the issues was v4.39 (September 14, 2021).

This was really annoying, because Office apps kept notifying me of available updates after every restart of one of the Office apps. Now it did open the tool, but it looked like it failed updating itself and got stuck in the “Installing” state before it could update Office. Normally it starts Microsoft AutoUpdate (MAU) which searches for Office updates. A constant appearing message in Word and Excel about to “Check for updates” triggered me to start updating Microsoft Office on my Mac.
