In most cases, this isn't a virus, but a "cleaner" program or a Windows Update that accidentally wiped the installer cache located in C:\Windows\Installer . Without that cached .msi , Office enters a "repair loop," searching for its "birth certificate" (the original installer) to verify it's still healthy. How to Fix the "Ghost"
In this article, we will demystify the Officemui.msi file, explain , and provide the only safe methods to obtain and fix this file. Officemui.msi Download
: Office often looks for this file in a hidden folder called C:\MSOCache . If this folder was deleted to save space, the installer will fail. In most cases, this isn't a virus, but
Instead of searching for a direct download, follow these official Microsoft solutions. : Office often looks for this file in
By following these official methods, you will restore your Microsoft Office without exposing your computer to malware, corrupted language files, or future patch failures.
Download, install, or reinstall Microsoft 365 or Office 2024 on a PC or Mac