Addressing Error Code 30015-6(-1): Solutions for Office Installation Issues

To resolve the error code 30015-6(-1) during your Office installation, consider these effective troubleshooting steps:

1. Ensure internet reliability: Confirm that your internet connection is stable and uninterrupted to facilitate a smooth installation.
2. Temporarily disable antivirus: Antivirus programs can occasionally disrupt installation. Disable yours briefly and try installing Office again.
3. Purge Office installation cache: Clearing cached installation files can often rectify setup issues. Execute the following:
   • Hit Windows key + R to open the Run dialog.
   • Type %ProgramData%\Microsoft\Office\ and press Enter.
   • Remove all contents within the Office folder.
   • Reboot your PC and attempt the Office installation anew.
4. Utilize the Office uninstaller tool: If Office was previously installed, using the official uninstaller tool from Microsoft can help clear residual files and settings, paving the way for a clean installation.
5. Install Office in safe mode: To minimize conflicts with third-party applications, install Office in safe mode by following these steps:
   • Press Windows key + R to summon the Run dialog.
   • Type msconfig and hit Enter.
   • In the System Configuration, navigate to the Boot tab.
   • Select Safe boot with the Minimal option checked.
   • Apply the changes, OK it, and restart your computer to proceed with the Office setup in a minimal state.