How to solve the error code 0x84B80001: SQL Server 2012 Setup Failure

There are several possible solutions to the error code 0x84B80001 when installing SQL Server 2012:

1. Check system requirements: Make sure that your system meets the minimum requirements for SQL Server 2012. Check the hardware and software requirements, including the operating system version, processor, memory, and disk space.
2. Disable antivirus software: Antivirus software can interfere with the installation process. Disable any antivirus software before installing SQL Server 2012.
3. Run setup as administrator: Right-click on the setup file and select "Run as administrator" to ensure that you have the necessary permissions to install SQL Server 2012.
4. Check the installation media: If you are installing from a DVD or USB drive, make sure that the media is not damaged or corrupted. Try copying the installation files to a different location and run the setup again.
5. Check the log files: SQL Server 2012 setup creates log files that can provide more information about the error. Check the log files for any error messages or warnings that may help identify the problem.
6. Uninstall previous versions: If you have a previous version of SQL Server installed, uninstall it before installing SQL Server 2012. This can help avoid conflicts and ensure a clean installation.
7. Install the latest updates: Make sure that your operating system and other software are up to date with the latest updates and patches. This can help ensure compatibility with SQL Server 2012.