I had the same problem with Illustrator CC 2014 in Windows 7 64 bit.
After reading this thread I decided to uninstall all the Microsoft Visual C++ Redistributable entries beginning with the newest (x64),
however, when I tried to uninstall Microsoft Visual C++ 2013 Redistributable (x64) 12.0... the following window appeared
I selected Repair instead of uninstall and the process was succesful, then I tried to start Illustrator and the error message 0xc000007b apperared again, then I selected and repaired succesfully Microsoft Visual C++ 2012 Redistributable (x64) 11.0... and after this repair illustrator started without problems.