Fixing Error Code 0x800f0818: Resolving Feature Installation Issues on Windows Server 2012 R2

Follow these effective strategies to address error code 0x800f0818 on your Windows Server 2012 R2:

1. Update your system: Confirm that your Windows Server 2012 R2 has all the current updates. Navigate to Settings > Update & Security > Windows Update, and select Check for updates.
2. Employ the DISM tool: Launch the Command Prompt with administrative rights and execute the following: DISM /Online /Cleanup-Image /RestoreHealth. This command will detect and rectify any corrupt files on your system.
3. Utilize the System File Checker: Again, open Command Prompt as administrator and input: sfc /scannow. This process checks for corrupted system files and fixes them as needed.
4. Deactivate antivirus software: At times, antivirus programs can obstruct the installation of new features. Temporarily disable your antivirus and attempt the installation again.
5. Resort to Windows Server installation media: Should the above methods fail, consider using the Windows Server installation media. Insert the media and launch setup.exe. Opt to upgrade your existing setup and follow the instructions provided.