Strategic Resolution for Error Code 0x800f0930 During .NET Framework 3.5 Deployment on Windows Server 2012

Address the error code 0x800f0930 during the installation of .NET Framework 3.5 on Windows Server 2012 by following these procedures:

1. Confirm .NET Framework 3.5 installation: Launch Server Manager, access the 'Add Roles and Features' wizard, and verify if .NET Framework 3.5 is installed. If present, consider uninstalling and reinstalling.
2. Utilize the DISM command: Open Command Prompt as an administrator and input: DISM /Online /Enable-Feature /FeatureName:NetFx3 /All /LimitAccess /Source:D:\sources\sxs (adjust 'D:' to your installation media’s drive letter). This installs .NET Framework 3.5 directly from the media.
3. Check for updates: Navigate to Windows Update settings, check for new updates, particularly those related to .NET Framework, and install them before attempting to reinstall .NET Framework 3.5.
4. Adjust Group Policy settings: For servers within a domain, verify Group Policy settings affecting .NET Framework installation. Ensure the 'Specify settings for optional component installation and component repair' and 'Download repair content and optional features directly from Windows Update instead of WSUS' policies are enabled.
5. Temporarily disable antivirus software: Some antivirus solutions may hinder the .NET Framework 3.5 installation. Disable your antivirus temporarily and attempt the installation again.
6. Ensure the Windows Installer service is active: Check the Services console to ensure the Windows Installer service is operational. If not, start it before attempting to install .NET Framework 3.5 again.