How to solve the error code 0x84BB0001: SQL Server 2019 installation failed

There are several possible solutions to the error code 0x84BB0001 when installing SQL Server 2019:

1. Check system requirements: Make sure that your system meets the minimum requirements for SQL Server 2019 installation. 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 temporarily and try the installation again.
3. Run the installation as an administrator: Right-click on the installation file and select "Run as administrator" to ensure that you have the necessary permissions to install SQL Server 2019.
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 installation from there.
5. Check the installation log: The installation log can provide more information about the error. Check the log file for any error messages or warnings and try to resolve them.
6. Uninstall previous versions of SQL Server: If you have any previous versions of SQL Server installed, uninstall them before installing SQL Server 2019.
7. Use the SQL Server Installation Center: Use the SQL Server Installation Center to install SQL Server 2019. The Installation Center provides a step-by-step wizard that can help you troubleshoot any issues during the installation process.