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How to Fix the Office 2013 Entry Point Not Found Installation Error
Question details
The user needs to resolve an installation failure where a specific procedure entry point cannot be located within the Office setup executable.
- Product
- Microsoft Office 2013
- Device & OS
- Windows
- Scenario
- Installing Microsoft Office 2013 on a Windows PC.
- Observed behavior
- Windows halts the installation with an error message stating that the procedure entry point ShowProtoHandlerInstalledUI cannot be located in integratedoffice.exe.
Ensure you are logged into an administrator account on your Windows PC and back up any existing important documents before modifying system services or running removal tools.
Remove Remnants of Previous Office Installations
Use this solution to clear corrupted or conflicting files from older Office versions that are interfering with the new installation.
Leftover files and registry keys from previous or failed Microsoft Office installations are the most common cause of the integratedoffice.exe entry point error. A specialized removal tool is required to completely clean these remnants.
Navigate to the official Microsoft Support website and download the Microsoft Office uninstall support tool.
Launch the downloaded tool, follow the on-screen prompts, and select all previous versions of Microsoft Office to completely remove them from your system.
Once the uninstallation process is complete, restart your Windows PC to ensure all temporary files and registry locks are cleared.
Run your Microsoft Office 2013 installer again to verify if the error has been resolved.
Verify the Software Protection Service is Running
Use this method if the installation is blocked due to licensing or software protection services being disabled on Windows.
Temporarily Disable Conflicting Security Software
Try this step if your third-party antivirus is aggressively blocking the integratedoffice.exe file from executing.
Skip the Installation Errors with WPS Office
Struggling with missing entry points and corrupted installation files can drain your productivity. Switch to WPS Office, a free, lightweight, and highly compatible alternative to Microsoft Office. It installs in seconds without complex system dependencies, allowing you to get right back to work.
- 1. Download the Installer: Visit the official WPS Office website and click the free download button.
- 2. Run the Setup: Launch the lightweight installer, which safely bypasses the heavy system requirements of older software.
- 3. Start Creating: Open WPS Office to instantly start working on Word documents, Excel spreadsheets, and PowerPoint presentations.
Frequently Asked Questions
What is the integratedoffice.exe file?
Integratedoffice.exe is a core executable component used by Microsoft Office during the Click-to-Run installation process. It handles the streaming and setup of the Office application files in the background.
Will using the Office removal tool delete my personal documents?
No. The official Microsoft Office removal tool is designed to only target and uninstall the application files, registry keys, and corrupted setup caches. Your personal Word, Excel, and PowerPoint documents will remain completely safe on your hard drive.
Why does my antivirus block the Office 2013 installation?
Some third-party security programs may mistakenly identify the background streaming behavior of the Office Click-to-Run installer as a potential threat. This can result in blocked executables or 'entry point not found' errors, which is why temporarily disabling the antivirus during setup can help.
