How to Resolve Error Code 0x800705b4 in Windows Server 2003 R2

Here are various steps you can follow to address error code 0x800705b4 on Windows Server 2003 R2:

1. Restart the Windows Update service: Navigate to Start > Run, input 'services.msc' and press Enter. Find the Windows Update service, right-click it and choose 'Restart'. Allow the service to restart and attempt to update Windows once more.
2. Verify your internet connectivity: Ensure your internet connection is active and stable. If you're utilising a proxy server, confirm it's properly configured.
3. Temporarily disable antivirus software: Antivirus programs can sometimes disrupt Windows Update processes. Temporarily disabling your antivirus may help resolve the issue.
4. Utilise the Windows Update troubleshooter: Access this tool by navigating to Start > Control Panel > Troubleshooting > System and Security > Fix problems with Windows Update. Follow the on-screen instructions to let the troubleshooter attempt to diagnose and resolve the problem.
5. Manually download and install updates: Should the above steps fail, consider manually downloading and installing the necessary updates. Visit the Microsoft Update Catalog, search for the required updates, download them, and proceed with a manual installation.