sudo chown -R root:wheel "/Library/Application Support/Microsoft/MAU2.0" sudo chmod -R 755 "/Library/Application Support/Microsoft/MAU2.0"
Corrupted framework errors sometimes stem from licensing issues. You can use the official Microsoft License Removal Tool to clear old activation data before trying to reinstall. Technical Location For manual inspection, the framework is usually located at: Microsoftsetupui.framework Mac Patch Download
Reset the installer receipts. Sometimes the macOS receipt system thinks the framework is installed when it is not. Microsoftsetupui.framework Mac Patch Download
Stay safe, and keep your frameworks official. Microsoftsetupui.framework Mac Patch Download
The "Setup UI" is often managed by Microsoft’s background updater. If this framework is missing or broken, downloading the latest package can often replace the faulty files.