How to solve the error code 0x84BB0001: SQL Server 2012 Setup Failure

There are several possible solutions to the error code 0x84BB0001 when installing SQL Server 2012. Here are some steps you can try:

1. Check system requirements: Make sure 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: Sometimes, antivirus software can interfere with the installation process. Try disabling your antivirus software temporarily and then run the installation again.
3. Run the installation as an administrator: Right-click on the setup file and select "Run as administrator" to ensure that you have the necessary permissions to install SQL Server.
4. Check the installation log files: The installation log files can provide more information about the error. Look for any error messages or warnings in the log files and try to resolve them.
5. Uninstall previous versions of SQL Server: If you have any previous versions of SQL Server installed on your system, try uninstalling them before installing SQL Server 2012.
6. Use the SQL Server Installation Center: Use the SQL Server Installation Center to install SQL Server 2012. This tool can help you troubleshoot installation issues and provide more information about the error.