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How to solve the error code 0x84B40002: SQL Server 2014 installation failed

There are several possible solutions to this error code:

  1. Check system requirements: Ensure that your system meets the minimum requirements for SQL Server 2014 installation. This includes the operating system, processor, memory, and disk space.
  2. Disable antivirus software: Antivirus software can interfere with the installation process. Disable your antivirus software temporarily and try the installation again.
  3. Run the installation as an administrator: Right-click on the installation file and select "Run as administrator" to ensure that you have the necessary permissions to install SQL Server.
  4. Check for Windows updates: Ensure that your system is up-to-date with the latest Windows updates. This can help resolve any compatibility issues with SQL Server.
  5. Uninstall previous versions of SQL Server: If you have any previous versions of SQL Server installed, uninstall them before attempting to install SQL Server 2014.
  6. Use the SQL Server Installation Center: Use the SQL Server Installation Center to install SQL Server 2014. This tool can help identify and resolve any installation issues.
  7. Check the installation logs: Review the installation logs to identify any specific errors or issues that may be causing the installation to fail. This can help you troubleshoot and resolve the issue.
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