Sometimes, background applications (like antivirus or overlay software) conflict with the runtime.
If the installer says "Already installed," you can repair the files: microsoft visual c++ runtime library
If you are packaging your application for distribution, you must ensure the runtime is available on the user's machine. microsoft visual c++ runtime library
The Microsoft Visual C++ Runtime Library (MSVCRT) is a set of essential system files (DLLs) that allow programs developed with Visual C++ to run on Windows [11, 29]. It provides standard functions for basic tasks like memory management, input/output, and mathematical calculations [11]. Most users encounter this library through the microsoft visual c++ runtime library