vcruntime140_1.dll
This file belongs to Microsoft Visual C++ 2015-2022 Redistributable. Install that package and the DLL arrives with it, in the right place and correctly registered.
The error names your specific file, but the fix is the same for the whole family: every Visual C++ runtime file and which redistributable ships it.
If the file is already there and Windows still complains, read the message again: “entry point not found” is a different problem from a missing file, and installing the runtime again will not solve it.
And if the box says RUNDLL rather than naming a program, the fix runs the other way: something left an instruction behind pointing at a file that is meant to be gone, so restoring the file is the wrong move.
Do not download this DLL on its own
Searching for a missing DLL by name leads to sites that hand you that single file. It is one of the oldest and most effective malware delivery methods there is, and a system DLL from an unknown source is indistinguishable from a deliberately modified one. There is never a legitimate reason to obtain a runtime component that way.
The same goes for the tools that offer to do it for you: what a DLL repair tool can and cannot actually fix.
What it is
A separate library from vcruntime140.dll despite the near-identical name. It was added in Visual Studio 2019 to hold the x64 exception handling machinery, and it exists only in the 64-bit runtime.
Where you see it: Programs built with Visual Studio 2019 or later, on machines where only an older Visual C++ redistributable is installed.
This is the one that catches people out: they already have vcruntime140.dll and assume the runtime is installed. It is, but an older build of it. Installing the current 2015-2022 redistributable adds this file. There is no 32-bit version, so only the x64 package matters here.
Install Microsoft Visual C++ 2015-2022 Redistributable
The official package, with the download URL Microsoft declares and the SHA-256 of every installer so you can verify it before running.
After downloading you can check the file against our index to confirm it is the installer the publisher shipped.