How to solve the error code 0x80070643: SQL Server 2016 installation failed

There are several possible solutions to the error code 0x80070643 when installing SQL Server 2016:

1. Check system requirements: Make sure that your system meets the minimum requirements for SQL Server 2016 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 your antivirus software temporarily and try installing SQL Server 2016 again.
3. Run the installation as an administrator: Right-click on the SQL Server 2016 installation file and select "Run as administrator." This will give the installation process the necessary permissions to complete the installation.
4. Check Windows Update: Make sure that your system is up to date with the latest Windows updates. Go to Settings > Update & Security > Windows Update and check for any available updates.
5. Uninstall previous versions of SQL Server: If you have any previous versions of SQL Server installed on your system, uninstall them before installing SQL Server 2016.
6. Use the SQL Server Installation Center: Use the SQL Server Installation Center to install SQL Server 2016. This tool will guide you through the installation process and help you avoid common errors.
7. Check the installation logs: If the installation fails, check the installation logs for any error messages. The logs can be found in the %ProgramFiles%\Microsoft SQL Server\130\Setup Bootstrap\Log folder.