This file is 32-bit (the "140" refers to the Visual Studio 2015 toolset). Even if you have a 64-bit version of Windows, u-center (which is often 32-bit) needs the 32-bit version of this DLL.
If you have confirmed the DLL exists in C:\Windows\SysWOW64 but u-center still reports it missing, you may need to manually register it. u-center vcruntime140.dll
For maximum compatibility with both 32-bit and 64-bit systems, it is recommended to install both versions of the redistributable. This file is 32-bit (the "140" refers to