The error message “To run this application, you first must install one of the following versions of the .NET Framework” appears when attempting to launch a program that depends on specific .NET Framework components.
This error occurs due to missing, corrupted, damaged, or blocked .NET Framework components within Windows. Other possible reasons include a corrupted user profile, Windows failing to load .NET components, or damage caused by incomplete Windows updates.
A single broken or disabled component within the .NET Framework can stop the entire environment from functioning, as it provides essential libraries required by many applications.
Any malfunction can prevent the program from running correctly.
Reliable methods are available to fix this issue, which have helped many users.
Author's summary: Fix .NET Framework error.