After completing installation of WAMP server on my windows 7 system, if try to run it, wamp throws error like:
"The program can't start because VCRUNTIME140.dll is missing from your computer. Try reinstalling the program to fix the problem."
WAMP will give proper instruction while installation process that system should be updated with below mention packages and addition to this if you have Skype installed in your PC you should close it. Skype share the same port as WAMP and will generate port issue. You can change skype port easily a detail blog HERE.
So before you install WAMP you need to have VC9, VC10, VC11, VC13 and VC14 packages with updated version, else it wont work on your windows system and generate error.
You can install all above packages from below links: