Download the following zip package, which contains two files: msvcr100.dll and msvcr80.dll:
Error 'Unable to start correctly (0Xc000007b)' when launching Lightroom | Windows
Issue: 'Unable to start correctly (0Xc000007b)' error
When you try to launch Lightroom on your Windows machine, the following lightroom.exe - Application Error message appears:
The application was unable to start correctly (0xc000007b). Click OK to close the application.
Try the following solutions in the order listed below. After performing the steps for each solution, test to see if the issue has been resolved.
Solution 1: Download and install a DLL package to the Lightroom installation directory.
Extract the package contents to the following location:
C:\Program Files\Adobe\Adobe Photoshop Lightroom [Version]\
Solution 2: Uninstall and reinstall Lightroom.
Solution 3: Uninstall and repair the Microsoft Visual C++ Runtime Libraries.
The Microsoft Visual C++ Runtime Libraries may cause conflict with the Lightroom installer prerequisites. To uninstall and repair the libraries, follow these steps:
Once the uninstall and repair of Microsoft Visual C++ libraries is complete, repeat Solution 2: Uninstall and reinstall Lightroom provided above in this article.
Solution 4: Run a repair of, or reinstall, Windows.
Contact Microsoft support if you need any assistance for performing this step.