Resolving SQL Server 2012 Setup Error 0x84B40002

To address the SQL Server 2012 installation error 0x84B40002, consider the following steps:

1. Verify system compatibility: Confirm that your computer adheres to the minimum specifications required for SQL Server 2012. Ensure compatibility with your hardware and software, including the OS version, CPU, RAM, and available disk space.
2. Temporarily disable antivirus software: Antivirus programs may disrupt the installation process. It's advisable to deactivate any antivirus protection before proceeding with the SQL Server 2012 installation.
3. Execute setup with administrative privileges: To ensure appropriate permissions for installation, right-click the setup file and choose 'Run as administrator'.
4. Inspect the installation media: If using a DVD or USB for installation, check for any damage or corruption. Consider transferring the setup files to an alternative medium and attempt the installation again.
5. Consult the installation log: For more detailed error insights, refer to the installation logs located in the %ProgramFiles%\Microsoft SQL ServerH\Setup Bootstrap\Log directory.
6. Remove earlier SQL Server versions: Prior installations of SQL Server should be uninstalled to prevent conflicts with the new installation.
7. Update your system: Ensure your system is current with the latest updates and service packs. Install any necessary updates before commencing with the SQL Server 2012 setup.