.NET Framework 3.5 installation failed on an OEM Windows image without public Internet access
Can't install the .NET Framework 3.5 without a public Internet environment on an OEM Windows installation
A .NET Framework 3.5 installation on an OEM-based Windows image can fail in an isolated environment because the required feature content must match the installed OS and may still need Internet-backed servicing access.
Can't install the .NET Framework 3.5 without a public Internet environment on an OEM Windows installationinstallation
Observed message
Can't install the .NET Framework 3.5 without a public Internet environment on an OEM Windows installation
Why it happens
The OEM Windows image includes updates or language combinations that do not match the alternate source being used.
The environment is fully isolated and cannot obtain the required feature content from the Internet.
The selected source media does not explicitly match the installed OS state.
How to fix it
Use installation media that matches the installed OS, updates, and language state closely.
Prepare media with .NET Framework 3.5 preinstalled if the environment is permanently isolated.
Temporarily provide Internet access to complete the feature installation if your environment allows it.
