Wait for the progress bar to complete. You should see a "Success" message once finished. Step 4: Installation via DISM (Command Line)
Progress through the wizard until you reach the page. Wait for the progress bar to complete
On Windows Server 2016, .NET Framework 3.5 is considered a "Feature on Demand." If your server lacks internet access or is behind a restrictive firewall, the standard installation via the Add Roles and Features Wizard will fail with error codes like 0x800F0906 or 0x800F081F. Using an offline method bypasses the need to connect to Windows Update. Step 1: Acquire the Source Files On Windows Server 2016,
If you prefer using a graphical interface, follow these steps but ensure you point the wizard to your local source: Open and click Add roles and features . On Windows Server 2016
Sometimes domain-level Group Policies block the installation of optional features. You may need to check with your IT administrator to ensure "Specify settings for optional component installation" is enabled in GPO. Summary Table: Quick Reference Command/Path Key Requirement Server Manager Specify alternate source path Mounted ISO/Media PowerShell Install-WindowsFeature Net-Framework-Core -source Admin Privileges DISM
Ensure the ISO version matches your installed OS version exactly (e.g., don't use a Windows 10 ISO for a Windows Server 2016 installation).