Troubleshooting SQL Server 2012 Installation: Error Code 0x84B40000

If you encounter the error code 0x84B40000 while setting up SQL Server 2012, consider these effective solutions:

1. Verify system compatibility: Ensure your computer meets SQL Server 2012's minimum requirements, including hardware and software specifications such as OS version, CPU, RAM, and available storage.
2. Temporarily disable antivirus: Antivirus programs can disrupt the setup process. Deactivate your antivirus temporarily and attempt the setup once more.
3. Execute setup with admin rights: Right-click the installer and choose 'Run as administrator' to guarantee all necessary permissions for the installation.
4. Inspect the installation medium: If using a DVD or USB for installation, ensure it's free from damage or corruption. Alternatively, copy the setup files to another location and initiate the installation from there.
5. Review installation logs: Installation logs can offer clues to the nature of the error. Access the logs in the %ProgramFiles%\Microsoft SQL ServerH\Setup Bootstrap\Log directory to find specific error details.
6. Remove previous SQL Server versions: Uninstall any prior SQL Server installations before installing SQL Server 2012 to prevent software conflicts.
7. Update your operating system: Ensure your operating system is up-to-date with the latest service pack available from the Microsoft website.