Resolving SQL Server 2014 Installation Error 0x84B40002

Several strategies can be employed to address this installation error:

1. Verify system compatibility: Confirm that your computer adheres to SQL Server 2014's minimum installation requirements including the OS, CPU, RAM, and available storage.
2. Temporarily deactivate antivirus: Antivirus programs can obstruct the installation. Temporarily turn off your antivirus and attempt the installation once more.
3. Install with administrative rights: Right-click the installer and choose 'Run as administrator' to guarantee all necessary permissions for the installation.
4. Update Windows: Keeping your system updated with the latest Windows patches can alleviate compatibility issues with SQL Server.
5. Remove older SQL Server versions: Prior to installing SQL Server 2014, ensure that all previous SQL Server installations are uninstalled.
6. Utilize the SQL Server Installation Center: This tool aids in identifying and resolving potential installation problems with SQL Server 2014.
7. Examine installation logs: Check the logs for specific errors or issues that could be hindering the installation, which will assist in troubleshooting.