Fixing .NET Framework 3.5 Installation Error 0x800f0927 on Windows Server 2012

Overcome the error code 0x800f0927 with these steps to successfully install .NET Framework 3.5 on Windows Server 2012:

1. Verify .NET Framework 3.5 installation status: Navigate to Control Panel > Programs and Features > Turn Windows features on or off to check if .NET Framework 3.5 is already enabled.
2. Deploy DISM command: Launch Command Prompt as administrator and execute: DISM /Online /Enable-Feature /FeatureName:NetFx3 /All /LimitAccess /Source:D:\sources\sxs (replace 'D:' with your installation media drive letter).
3. Utilize Windows Update Troubleshooter: Access the Control Panel > Troubleshooting > System and Security > Fix problems with Windows Update and follow instructions to resolve update issues.
4. Manually install .NET Framework 3.5: Download the .NET Framework 3.5 installer from the Microsoft Download Center, execute the installer, and follow prompts to complete the installation.
5. Scan and repair system files: Open Command Prompt as administrator, run 'sfc /scannow' to detect and fix any corrupt system files that might be causing installation issues.