Fix_Office_Error_30125-1-12007_Guide
                     How to Fix Microsoft Office Error Code 30125-1 (12007)
1. Check Internet Connectivity
- Ensure your internet connection is stable.
- Unstable or slow connections can interrupt the installation process, leading to errors like 30125-1
(12007).
2. Run Windows Update
- Keeping your operating system up to date can resolve compatibility issues.
- Go to Settings > Update & Security > Windows Update.
- Click on 'Check for updates' and install any available updates.
3. Temporarily Disable Firewall and Antivirus Software
- Security software can sometimes interfere with the Office installation process.
- Disable Windows Firewall:
-   - Go to Control Panel > System and Security > Windows Defender Firewall.
-   - Click on 'Turn Windows Defender Firewall on or off'.
-   - Select 'Turn off Windows Defender Firewall' for both private and public networks.
- Disable Antivirus Software:
-   - Open your antivirus application.
-   - Navigate to settings and turn off real-time protection.
-   - Also, disable any firewall features within the antivirus software.
4. Use the Office Offline Installer
- Downloading a fresh copy of Office can resolve issues related to corrupted installation files.
- Reinstall Office:
-   - Visit https://account.microsoft.com and sign in.
-   - Navigate to 'Services & subscriptions'.
-   - Find your Office product and click 'Install'.
-   - Follow the on-screen instructions to complete the installation.
5. Perform System File Check (SFC) Scan
- Corrupted system files can cause installation errors.
- Run SFC Scan:
-   - Open Command Prompt as an administrator.
-   - Type 'sfc /scannow' and press Enter.
-   - Wait for the scan to complete and follow any on-screen instructions.
6. Check for Existing Office Installations
- A previous or incomplete Office installation can trigger error 30125-1 (12007).
- Repair Office:
-   - Go to Control Panel > Programs and Features.
-   - Find Microsoft Office in the list, right-click, and select 'Change'.
-   - Choose 'Repair' and follow the prompts.
- Uninstall Office:
-   - If repair doesn't work, uninstall Office from the same menu.
-   - After uninstallation, restart your computer and attempt a fresh installation.
Source
For more details, visit: https://winchatsupport.com/office/office-error-code-30125-1-12007/