api-ms-win-crt-runtime-l1-1-0.dll missing ?

Sun Aug 7 10:09:47 EDT 2016

Thank you for your free product PYTHON I'd like to familiarize with, if
possible. 

Environment: Windows 8.1 proc x64

I installed the version from the buton. After a succesfull installation, a
system error occurs on the lounch of the program.
I desinstalled this version from my PC.

I installed the version for windows 64. After a succesfull installation, the
same system error occurs on the lounch of the program:
api-ms-win-crt-runtime-l1-1-0.dll is missing.

Please would you let me know where I can get safely this .dll giving me the
exact address because I'm a beginner ? Thank you.
Best regards
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L'absence de virus dans ce courrier électronique a été vérifiée par le logiciel antivirus Avast.
https://www.avast.com/antivirus