0xc000007b Error Solution

Two days ago I was working on a C++ project using OpenCV, when suddenly my project couldn’t run anymore!

I just have changed my OpenCV dlls to parallel version and ended up with this Error: "The application was unable to start correctly (0xc000007b). Click OK to close the application." every time I tried to run my application.

0xc000007b-error

After some hours of hard search I found that 0xc000007b error didn’t come from an exception in my code or even OpenCV dlls. I found that the error is just wrong configurations and the solution is easy, so I decided to write this article to show you how you cans solve this error permanently.

The Problem

0xc000007b error comes mainly from mixing up 32bit environment with 64bit one, that is you have an 32bit application that tries to load a 64bit dll.

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Install Windows 7 (64 bit) on HP 530 Notebook

Windows Versions

When Windows Vista became pre-release I immediately installed it because of the stories that we heard about it. We all remember that Microsoft says a lot about Windows Vista, so that we believed it will satisfy all our dreams.

But I couldn’t use it more than one month!! I realized that Windows Vista is not stable, beside that it used a lot of RAM comparing to Windows XP, so I felt that I was stupid because I believed Microsoft trivialities about Windows Vista. From that day I stuck with Windows XP and refuse even thinking about changing it!

Now a days, Windows 7 become pre-release and many people (includes IT professionals) says that Windows 7 is the best ever Windows, they always repeat that Windows 7 is the soul of Windows XP with Windows Vista style. So after I heard this story from a lot of my friends I finally decide to try Windows 7

Preparing to Install

I installed Windows 7 Ultimate (64 bit) on my HP 530 Notebook, and realized a lot of people in forums tried to do that on almost the same laptop, so I deiced to add this post to be a step by step tutorial about installing Windows 7 and almost all programs you need on it.
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