How to fix system error vcruntime140 dll is missing and 0x80070643 (Premiere Pro 2021 as an example)

After installing Premiere Pro 2021, it prompts CRuntime140.dll was not found when it is opened, please refer to the installation log for details. What caused this problem? CRuntime is a C/C++ Runtime Library developed by Microsoft, which means that Premiere Pro 2021 cannot be opened due to the lack of this runtime library in the operating system. Open the Uninstall and change a program window, and see that Visual C++ 2013 Redistributable, that is, C/C++ Runtime Library, has been installed when Premiere Pro 2021 is installed. Why does it still prompt this error?

There are different versions of Visual C++ Redistributable. It is not enough to install Visual C++ 2013 Redistributable. We have to install other versions. I have already installed Visual C++ 2017, 2013, 2012, 2010 and 2008 Redistributable in my system. I still get this error, indicating that I still need it. Install the latest version of Visual C++ 2019 Redistributable, why not Visual C++ 2021 Redistributable, because the latest version is 2019.

After downloading the Visual C++ 2019 Redistributable, I encountered a Could not open key (0x80070643-Fatal error during installation.) error when installing it, which caused it to fail to install. What is the reason for this? See below for details.

I. CRuntime140.dll was not found error (i.e. System error vcruntime140 dll is missing)

1. Reason: lack of Visual C++ runtime library, Premiere Pro 2021 lacks Visual C++ 2015-2019 Redistributable.

2. How to fix vcruntime140 dll is missing error on windows

Download and install Visual C++ 2015-2019 Redistributable.

II. Installation of Visual C++ 2019 Redistributable error (install error 0x80070643)

specifically: Every time you install one, it prompts Could not open key, it prompts 0x80070643-Fatal error during installation. at the end. After opening the log file of installation error, there is a sentence Apply complete, result: 0x80070643, restart: None, ba requested restart at the end.

Solution:

Uninstall Visual C++ 2017 Redistributable. If you don't have this, you can try to uninstall the next version, and so on. There are two ways to uninstall:

Method 1: Go to the Uninstall and change a program window to uninstall, the steps are: Start menu at the bottom left corner of the screen → Control Panel → Programs → Uninstall a program → open the Uninstall and change a program window, right-click Visual C++ 2017 Redistributable, and then select Uninstall.

Method 2: Use Microsoft's cleaning tool Windows Install Clean Up to uninstall, which can be downloaded online.

After uninstalling, install Visual C++ 2015-2019 Redistributable. At this time, the Could not open key will no longer be prompted. After installation, you can open Premiere Pro 2021 normally.

In addition to the Premiere Pro 2021 prompt CRuntime140.dll was not found error, other software such as Photoshop, mySQL, CAD, Visual Studio, etc. will also prompt, because they all require the Visual C++ runtime library, and the solution is the same.