If you suspect your system is missing the update, here is how to verify:

The text "v4.0.30319" refers to the core version of Microsoft .NET Framework 4.0

: While often associated with .NET 4.0, this specific version number (4.0.30319) actually serves as a base version for all subsequent .NET Framework 4.x releases, including 4.5, 4.6, 4.7, and 4.8.

What is .NET Framework? A software development framework | .NET

If an application is requesting this feature, follow these steps: Turn on Windows Features Start menu and type "Turn Windows features on or off". .NET Framework 4.8 (or similar 4.x entry) and ensure the box is checked. and let Windows download any necessary files. Standalone Installer : If the feature is missing, you can download the official .NET Framework 4.8 installer from Microsoft. Repair Tool