: Downloading MSI files from third-party websites is risky and not recommended. Always use official Microsoft sources for Office components.
These errors typically occur for three reasons:
Select your version of Office (e.g., Microsoft 365, Office 2021, Office 2019, or Office 2016). Select the language that matches your error prompt.
For modern versions (Office 2019, 2021, or 365), Microsoft uses the Office Deployment Tool to manage installations. You can use it to download a fresh, complete set of installation files that includes all necessary MSI components. 2. Run the Microsoft Support and Recovery Assistant Officemui.msi Download
The system asks for Officemui.msi during:
To ensure a safe and legitimate download:
Run the download command matching your configuration file: setup.exe /download configuration.xml . : Downloading MSI files from third-party websites is
Instead of downloading individual MSI files from third-party sites (which can be risky), use these official methods to restore the file:
Right-click the Office application and select (or Modify ).
Go to the official Microsoft Account Dashboard or the Office Portal. Select the language that matches your error prompt
Officemui.msi is a Windows Installer package file used by Microsoft Office to install packs. These packs allow users to change the display language of Office applications (Word, Excel, PowerPoint) to their native language.
Method 1: Use the Microsoft Office Deployment Tool (For IT Admins & Advanced Users)