Solving SQL Server 2012 Installation Error 0x84B50000

Several strategies exist for resolving the installation error 0x84B50000 with SQL Server 2012:

1. Verify system compatibility: Ensure your computer adheres to SQL Server 2012's minimum requirements. Verify necessary hardware and software specs, such as OS, CPU, RAM, and available disk space.
2. Temporarily turn off antivirus: Antivirus programs may disrupt the installation. Temporarily disable your antivirus software before proceeding with the SQL Server 2012 setup.
3. Install as administrator: To ensure adequate permissions for installation, right-click the setup executable and choose 'Run as administrator.'
4. Update Windows: Ensure your system is current with all Windows updates. Install any outstanding updates and attempt the installation again.
5. Initiate a clean boot: Start your system in a clean boot state to avoid conflicts with other applications or services. Access the System Configuration, select 'Selective startup,' and ensure only 'Load system services' is checked.
6. Repair .NET Framework: SQL Server 2012 relies on .NET Framework 3.5 SP1 or newer. If facing error 0x84B50000, consider repairing your .NET Framework setup.
7. Remove older SQL Server versions: Prior SQL Server installations should be uninstalled to prevent conflicts with the new installation of SQL Server 2012.
8. Examine installation logs: Review the installation logs for clues on the error’s cause. Logs are located in the %ProgramFiles%\Microsoft SQL ServerH\Setup Bootstrap\Log directory.