How to Find and Remove Leftover Microsoft Office Installation Files
Question details
The user needs to locate and completely delete residual Microsoft Office files after multiple installations and uninstallations to free up disk space.
- Product
- Microsoft Office
- Device & OS
- Windows
- Scenario
- Running out of disk space due to suspected leftover files from repeated Microsoft Office installs and uninstalls across different hard drives.
- Observed behavior
- Storage analysis with TreeSize initially failed to reveal all files because it was not run as an administrator, and some Office-related folders had been moved from the C: drive to the D: drive.
Ensure you are logged into a Windows account with Administrator privileges so that you have the necessary permissions to view and modify hidden system folders and files on your drives.
Use TreeSize as Administrator to Locate Leftover Files
Running a storage analyzer tool like TreeSize with administrative rights allows you to see hidden residual folders across all drives and manually remove them.
Standard user permissions often hide large system and installation folders. By elevating your storage analysis tool to administrator status, you can accurately map out where the leftover Office files are hiding, even if they were moved to secondary drives.
Locate the TreeSize shortcut on your desktop or Start menu, right-click the icon, and select 'Run as administrator' from the context menu.
Once the application is open, select the directory drop-down or scan button to analyze your primary C: drive, then repeat the process for your D: drive where folders were previously moved.
Look for large folders labeled 'Microsoft Office', 'Office16', or 'Microsoft Shared' typically found under Program Files, Program Files (x86), or the hidden ProgramData directory.
Right-click the identified leftover Microsoft Office folders within the TreeSize interface and select 'Delete' to remove them and free up disk space.
Use the Microsoft Office Uninstall Support Tool
Utilize Microsoft's official automated tool to deeply scrub all residual installation files and registry keys left behind by standard uninstalls.
Switch to WPS Office for a Lightweight, Hassle-Free Experience
Tired of bloated software and heavy installation files eating up your disk space? WPS Office is a free, lightweight alternative to Microsoft Office that installs in seconds and uses minimal storage space while maintaining full functionality.
- 1. Download the Installer: Visit the official WPS Office website and click the free download button to get the lightweight installer.
- 2. Install Quickly: Run the installer. The process takes only a few moments and uses a fraction of the hard drive space compared to other suites.
- 3. Open Your Documents: Instantly open, edit, and save your existing Microsoft Office files without any formatting issues.
Frequently Asked Questions
Where are Microsoft Office leftover files usually hidden on Windows?
Residual files are often located in hidden system folders such as C:\ProgramData\Microsoft\Office, C:\Users\[Username]\AppData\Local\Microsoft\Office, and within the standard C:\Program Files\Microsoft Office directory.
Why doesn't the standard Windows Apps uninstaller remove everything?
The default uninstaller often leaves behind customized templates, user settings, cache files, and registry entries so that your preferences are preserved if you decide to reinstall the software later.
Can leftover registry keys cause disk space issues?
Registry keys themselves take up a negligible amount of space (measured in kilobytes). The real culprits for disk space usage are cached installation files, downloaded updates, and temporary files left in the AppData folders.
Is it safe to delete the MSOCache folder?
The MSOCache folder is a hidden folder used by Microsoft Office during installation and updates. If you have completely uninstalled Office and want to reclaim space, deleting this folder is safe, but it may require you to insert the original installation media if you ever reinstall.
