Resolving Installation Failure Error 0x800F0923 for SQL Server 2017

To address the error code 0x800F0923 during SQL Server 2017 installation, follow these practical steps:

1. Verify system compatibility: Ensure your computer satisfies SQL Server 2017's installation prerequisites, including required operating system, CPU, RAM, and available storage.
2. Temporarily turn off antivirus: Antivirus programs might obstruct the installation. Deactivate your antivirus briefly and attempt the installation of SQL Server 2017 once more.
3. Update your system: It's crucial to have the latest Windows updates installed. Navigate to Settings > Update & Security > Windows Update, check for new updates, install them, and retry the SQL Server 2017 installation.
4. Enable .NET Framework 3.5: SQL Server 2017 needs the .NET Framework 3.5. If it's missing, go to Control Panel > Programs and Features > Turn Windows features on or off > .NET Framework 3.5 (includes .NET 2.0 and 3.0), and activate it.
5. Use the command prompt for installation: If prior methods fail, install SQL Server 2017 via command prompt. As an administrator, open command prompt and execute: setup.exe /q /ACTION=Install /FEATURES=SQL /INSTANCENAME=MSSQLSERVER /SQLSVCACCOUNT='NT AUTHORITY\SYSTEM' /SQLSYSADMINACCOUNTS='BUILTIN\Administrators' /AGTSVCACCOUNT='NT AUTHORITY\NETWORK SERVICE' /IACCEPTSQLSERVERLICENSETERMS