In order to fix Api-ms-win-crt-runtime-l1-1-0.dll error you have to either apply manual method or go with the automatic DLL Repair Tool.
Manual method:
Download the misplaced or corrupt dll file from the net and place it to its actual place.
Automatic Method:
Download DLL Repair tool and run it on the system, it will automatically fix all types of dll errors and registry issues within a minute.