Overview
If you receive Office Error Code: 0-2035 (0) while installing Microsoft Office, it usually means that another Office installation, update, or uninstall process is still running, or that a previous Office installation didn't complete successfully, preventing the new installation from starting.
This can happen if:
Another Office installation or update is still running.
A previous Office installation failed or was interrupted.
An older version of Office or Microsoft 365 is still installed.
Click-to-Run installation files are corrupted.
Antivirus or security software is blocking the installer.
💡 Before You Begin
Before starting, make sure you have:
✅ A stable internet connection
✅ Administrator access to your PC
✅ Your Office product key (if applicable)
Step 1 – Restart Your Computer
A pending Office installation may still be running in the background.
Save any open work.
Restart your PC.
Try running the Office installer again.
If the error still appears, continue to the next step.
Step 2 – Check for Another Office Installation
Look for an Office icon in the Windows taskbar notification area (system tray).
If Office is currently installing or updating, wait for it to finish.
Once completed, run your installer again.
If no installation is running, continue below.
Step 3 – Completely Remove Existing Office Installations
A partially installed or older Office version can block the installation.
Download and run Microsoft's Office Uninstall Support Tool.
Remove all versions of Microsoft Office or Microsoft 365.
Restart your computer after the uninstall is complete.
Step 4 – Install Office Again
Sign in to your Microsoft account (if your license is account-based), or run the installer you received after purchase.
Right-click the installer and select Run as administrator.
Follow the on-screen instructions.
Step 5 – Temporarily Disable Your Antivirus
Some antivirus programs can prevent Office from installing correctly.
Temporarily disable your antivirus software.
Run the Office installer again.
Re-enable your antivirus after installation is complete.
Step 6 – Make Sure Windows Is Fully Updated
Open Settings → Windows Update.
Select Check for updates.
Install any available updates.
Restart your PC.
Try installing Office again.
Still Need Help?
If the installation still fails, please contact our support team and include:
A screenshot of the complete error message.
The Office product you purchased (for example, Office 2024 Professional Plus or Office Home & Business 2024).
Whether you previously had another version of Office or Microsoft 365 installed.
Whether the installer is the online installer or offline installer.
Our support team will be happy to help you get Office installed successfully. 😊