How to Troubleshoot Installation Error 0x80070643 for SQL Server 2019

Here are various strategies to resolve the installation error code 0x80070643 for SQL Server 2019:

1. Verify system compatibility: Ensure your computer fulfills SQL Server 2019’s necessary specifications. Review the minimum hardware and software prerequisites, such as the version of the operating system, CPU, RAM, and available storage.
2. Temporarily deactivate antivirus programs: Antivirus applications might disrupt the installation process. Temporarily turn off your antivirus and attempt to install SQL Server 2019 once more.
3. Execute setup with administrative rights: Right-click the installation file for SQL Server 2019 and choose 'Run as administrator' to grant the installer the required permissions to successfully install.
4. Update your system: Confirm that your system is updated with the most recent patches and updates by navigating to Settings > Update & Security > Windows Update and checking for updates.
5. Remove earlier SQL Server versions: Uninstall any existing SQL Server installations before proceeding with the new SQL Server 2019 setup.
6. Utilise the SQL Server Installation Center: For a guided installation, use the SQL Server Installation Center, which can help mitigate typical installation issues.
7. Review installation logs: Should the installation not succeed, consult the installation logs for any specific errors. These logs can be accessed in the %ProgramFiles%\Microsoft SQL Serverh\Setup Bootstrap\Log directory.