How to solve the error code 30015-6: Office 2013 installation couldn't be completed

There are several steps you can take to try and resolve the error code 30015-6 when installing Office 2013:

1. Check your internet connection: Make sure you have a stable internet connection and that there are no issues with your network.
2. Disable antivirus software: Sometimes, antivirus software can interfere with the installation process. Try disabling your antivirus software temporarily and then attempt to install Office 2013 again.
3. Clear the temporary files: Clearing the temporary files on your computer can help resolve installation issues. To do this, go to the Start menu and type %temp% in the search bar. This will open the temporary files folder. Delete all the files in this folder.
4. Run the installation as an administrator: Right-click on the Office 2013 installation file and select "Run as administrator". This will give the installation process the necessary permissions to complete the installation.
5. Use the Office uninstaller tool: If you have previously installed Office on your computer, use the Office uninstaller tool to remove any leftover files. You can download the tool from the Microsoft website.