msvcrt20.dll is a module containing standard C library functions such as printf, memcpy, and cos. It is a part of the Microsoft C Runtime Library.
Non-system processes like msvcrt20.dll originate from software you installed on your system. Since most applications store data in your system's registry, it is likely that your registry has suffered fragmentation and accumulated invalid entries which can affect your PC's performance. It is recommended that you check your registry to identify slowdown issues