How to solve the error code 0x800F0988: SQL Server 2017 installation failed

There are several possible solutions to the error code 0x800F0988 when installing SQL Server 2017:

1. Install the latest Windows updates: This error can occur if your Windows operating system is not up to date. Go to Settings > Update & Security > Windows Update and check for any available updates. Install them and try installing SQL Server 2017 again.
2. Enable .NET Framework 3.5: SQL Server 2017 requires .NET Framework 3.5 to be enabled. Go to Control Panel > Programs > Turn Windows features on or off and check the box next to .NET Framework 3.5. Then try installing SQL Server 2017 again.
3. Disable antivirus software: Antivirus software can sometimes interfere with the installation process. Disable your antivirus software temporarily and try installing SQL Server 2017 again.
4. Use the SQL Server Installation Center: Instead of using the standalone installer, try using the SQL Server Installation Center. This tool can help you troubleshoot installation issues and ensure that all prerequisites are met.
5. Check the installation logs: The installation logs can provide more information about the error. Check the logs located in %ProgramFiles%\Microsoft SQL Server\140\Setup Bootstrap\Log\ and look for any error messages or warnings. You can also try searching for the error code online to find more specific solutions.