Introduction:
You may see a error message like this when you run a program or game on your computer.
Error message as below:
    “The program can't start because MSVCP100.dll is missing from your computer.Try reinstalling the program to fix this problem.” 



    “The program can't start because MSVCR100.dll is missing from your computer.Try reinstalling the program to fix this problem.” 



We’ll help you fix this error with some basic step. You can see video guide to fix  MSVCR100.dll is missing & MSVCP100.dll is missing:



How to Do:
Step 1: Open Control Panel, then go to Programs & Features.


Step 2: Uninstall Microsoft Visual C++ 2010 current version. Please uninstall the both version x64 & x86 



Step 3: Access to Google, and search with key: Microsoft Visual C ++ 2010 SP1 Redistributable Package. Open results which contains both versions x64 & x86



Step 4: Download "Microsoft Visual C++ 2010 Service Pack 1 Redistributable Package MFC Security Update" as Microsoft guided. Remember to download two version x64 and x86.


Step 5: Please install the 2 newly downloaded files
Step 6: Restart your PC. Finished.

So you already fixed error: MSVCR100.dll & MSVCP100.dll Is Missing

Conclusion:
You can also use DLL-files software to fix this error. However, this software must buy license to use.
If you have any question, please comments on box as below. Thank for your following.