If you experience this error during the start of Delphi 10 Seattle

This error is not related to Delphi 10 Seattle – it is caused by TortoiseSVN v1.9 which is “side loaded” during start up (if installed before). Delphi 10 Seattle just works out of the box!

1 2 3 4 "The program can't start because api-ms-win-crt-runtime-l1-1.0.dll is missing from your computer. Try reinstalling the program to fix this problem"

you need to (re)install the Visual C++ Redistributable for Visual Studio 2015, either via Windows Update or download and directly install the Visual C++ Redistributable: