Re: DA:I Won't Startup, (0xc000007b) error
Your milage may vary, so do this at your own risk, but it was the only thing that worked for me:
This solution only works for a 64-bit system. It requires replacing files is system32 directory so be careful. Only attempt this solution if you are confident and if other solutions have failed. When Microsoft Visual C++ Redistributable Package is not properly configured it may cause 0xc00007b error. Firstly download the zip file [http://www.bitdefender.com/files/KnowledgeBase/file/dlls.zip] and decompress it. Reboot in safe mode and go to C:\Windows\System32. copy all files included in the zip package (mfc100.dll, mfc100u.dll, msvcr100.dll, msvcp100.dll and msvcr100_clr0400.dll) to C:\Windows\System32 replacing the current ones. After that reboot in normal mode.
Thanks to WynnSol for posting over on another thread. Original source is here: http://www.tomshardware.com/faq/id-1931360/0xc00007b-error-fix.html