How to resolve the error code 0x80070003: SQL Server 2016 installation failed

To tackle the error code 0x80070003 when installing SQL Server 2016, consider these approaches:

1. Ensure system compatibility: Confirm that your system meets the essential requirements for SQL Server 2016. This includes checking the OS version, processor specs, memory, and available disk space.
2. Turn off antivirus software temporarily: Sometimes, antivirus software can hinder the installation process. Disable it momentarily and try the SQL Server 2016 installation once more.
3. Run the installer with administrative privileges: Right-click the SQL Server 2016 setup file and select 'Run as administrator' to provide the necessary permissions for the installation.
4. Validate the installation media: If you’re using a DVD or USB drive to install SQL Server 2016, make sure the media isn’t damaged or corrupted. You might want to copy the installation files to another location and proceed from there.
5. Clean up the registry: Use a registry cleaning tool to eliminate any invalid or corrupt entries. This can resolve issues preventing the installation of SQL Server 2016.
6. Check the status of the Windows Update service: Ensure the Windows Update service is active and current. Certain updates may be required for SQL Server 2016 to install properly.