Error Code 30045-29 (1) can be a frustrating issue when trying to update your Microsoft 365 Office apps on Windows 11. Here’s how you can troubleshoot and resolve this problem:
Step 1: First, determine if you have a 32-bit or 64-bit system and Office installation
Right-click on a Word or Excel shortcut and select “Open file location”
- If the path includes “C:\Program Files (x86)”, you have a 32-bit system and Office
- If the path is just “C:\Program Files”, you have a 64-bit system and Office
To verify the Office version:
- Go to File > Account > About Word (or any other Office app).
- Check the version number.
Step 2: Before uninstalling Office, backup your Outlook data
Export your Outlook address book as a CSV file to preserve your contacts:
- Export Outlook contacts as a CSV file:
- Open Outlook.
- Go to File > Open & Export > Import/Export.
- Choose “Export to a file” > “Comma Separated Values (CSV)”.
- Select Contacts and export.
Step 3: Uninstalling Office won’t remove your OneDrive data, but you’ll temporarily access it via the web until reinstallation.
Step 4: After restarting your system, run these commands in an elevated Command Prompt:
- “sfc /scannow” to check and repair Windows components
- “dism /online /Cleanup-Image /checkhealth” to check the health of your system image
- If issues are found, run “dism /online /cleanup-image /restorehealth”
Step 5: Reinstall Office and import your Outlook contacts if needed.
The Office version you have installed (16.0.17628) seems unusual based on Microsoft’s update history. Following these steps should help identify and resolve any underlying issues causing the update error.