This is a legitimate Microsoft software component. If you see it on your computer, it was likely installed automatically by a game or professional software that requires it to run.
If a program specifically asks for this exact version, it usually means you have an outdated version installed, or the installation is damaged. vc2013redistx86 visual c 2013 x86 120 40664
You rarely need to manually install version 12.0.40664.0. Most modern software installers either bundle the redistributable or download the latest available version from Microsoft. However, if you encounter missing DLL errors, you can: This is a legitimate Microsoft software component