If when you try to open a program on your Windows computer you receive an error message The program can’t start because api-ms-win-crt-runtime-l1-1-0.dll is missing from your computer, it either means that Universal CRT, which is part of the Visual C++ Redistributable has either failed to install properly or that the api-ms-win-crt-runtime-l1-1-0.dll file has gone missing or become corrupted.
Before you begin, make sure that your Windows is updated. Run Windows Update and confirm. Also, run the System File Checker to replace potentially corrupted system files. Reinstalling the program that is throwing up this error may also help. If it does not, then check out the following options.
Repair installed Visual C++ 2015 Redistributable package
If you have already installed Visual C++ 2015 Redistributable package, but you receive the error, you might need to repair the program. To do this, open Control Panel and go to “Programs and Features” section. Find out Microsoft Visual C++ 2015 Redistributable (x64) [for 64-bit machine] > right-click on it > select Change button > click on the Repair button.
Re-register the DLL file
If the DLL file is present on your computer, but you still receive this error message, you may need to re-register the DLL file.
If the DLL file is missing, then downloading the missing dll file from the internet and pasting it to a particular place is not the actual solution. You can try that method, but you may not get any positive result from it.
Update for Universal C Runtime
Download the Update for Universal C Runtime from Microsoft. Install the Runtime component and restart your computer and see. Just for your information, starting with Windows 10, the Universal CRT is part of the operating system.
Install Microsoft Visual C++ Redistributable Update
If this does not help, you may need to install Microsoft Visual C++ Redistributable. You need to select the OS architecture, i.e. 64-bit or 32-bit.
Microsoft Visual C++ Redistributable for Visual Studio 2017
Like the Visual C++ 2015 Redistributable package, some programs use the Microsoft Visual C++ Redistributable for Visual Studio 2017.
You can try these solutions mentioned above to fix this problem and see which one of them helps you.