HomeDLL FILE'S api-ms-win-crt-runtime-l1-1-0.dll_85.rar api-ms-win-crt-runtime-l1-1-0.dll_85 .rar api-ms-win-crt-runtime-l1-1-0. dll is missing' this is due to Microsoft® Windows updates not being applied. ... Install all available updates. After the updates are installed, restart your computer.