Resolving Error 0x800f0926 During Windows Server 2012 R2 Update

Here are several steps to help you resolve error code 0x800f0926:

1. Verify your internet connection: Ensure that your internet connection is stable and strong enough to download and install updates.
2. Run the Windows Update troubleshooter: Navigate to Control Panel > Troubleshooting > System and Security > Fix problems with Windows Update. Follow the prompts to run the troubleshooter and see if it can identify and fix the issue.
3. Disable antivirus software: Antivirus software can sometimes interfere with the installation of updates. Temporarily disable your antivirus software and check if the issue is resolved.
4. Check for corrupt system files: Open Command Prompt as an administrator and run the command 'sfc /scannow' to check for and repair any corrupt system files.
5. Manually download and install the update: If the above steps fail, try manually downloading and installing the update from the Microsoft Update Catalog website. Ensure you download the correct update for your version of Windows Server 2012 R2.