The Microsoft AutoUpdate (MAU) tool freezes mid-installation, leaving corrupt framework files behind.
If you cannot download a 2GB Office suite and suspect the framework is simply quarantined, you can "patch" it using the Terminal. This is the closest thing to a manual patch without downloading new files.
This refreshes the core libraries, including Microsoftsetupui.framework. 2. Reinstall via the Microsoft Update Package Microsoftsetupui.framework Mac Patch Download
Knowing these details will allow me to provide step-by-step troubleshooting tailored to your machine. Share public link
If the framework file is corrupted or missing, a clean reinstall is the most reliable fix. Go to your folder. Share public link If the framework file is
Sometimes, cached preference files can cause launch-time crashes that incorrectly flag the Microsoftsetupui in crash reports. Close all Microsoft Office apps.
Press Shift + Command + G in Finder to open the prompt. Type ~/Library/Preferences and hit Enter. This refreshes the core libraries
Go to ~/Library/Containers and delete any Microsoft-related folders. Empty your Trash and restart your Mac.
macOS Gatekeeper or SIP (System Integrity Protection) blocking the framework.
I can provide the for the specific installer you need.