[2021] [Windows 10] The application was unable to start correctly (0xc000007b).

That error is almost always a bad or missing Microsoft module, usually Visual C++.

Please Install ALL these Microsoft modules:

Download Microsoft Visual C++ 2010 Service Pack 1 Redistributable Package MFC Security Update from Official Microsoft Download Center

www.microsoft.com

Download Microsoft Visual C++ 2015 Redistributable Update 3 RC from Official Microsoft Download Center

www.microsoft.com

Download DirectX End-User Runtimes (June 2010) from Official Microsoft Download Center

www.microsoft.com (run dxsetup.exe after extracting from this download)

THEN go here:

Latest supported Visual C++ Redistributable downloads

This article lists the download links for the latest versions of Visual C++ Redistributable packages. support.microsoft.com And run the x86 and x64 installers there.



IF that doesn't help:
DXDIAG is a program you run from the Windows search box on the task bar. After running it will open a window and start collecting info with a progress bar in the lower-left corner. When it completes click the 'save all information' button and save it to a file then attach that file here.

Please attach here your Documents/Paradox Interactive/EU4/settings.txt and pdx_settings.txt .
From your Documents/Paradox Interactive/EU4/logs/ folder, attach here system.log , error.log .  

After downloading them, you need to actually run them - did you do that? If so was there any problem or error with any of those 5 installers?

You have some LiveKernelEvent in that dxdiag, which means the machine was forcibly downed. Is that related to this game or something else?  

Symbioteking99 said: I am not sure what "the machine was forcibly downed" means

It means the machine was powered off without downing Windows. That can be a power outage, a hard hang where you had to hit the power button, something like that. If this game caused a hard-hang in the machine that's a real concern! But you think not?


For that Windows error try this Windows repair tool:

Use the System File Checker tool to repair missing or corrupted system files

Describes how to use the System File Checker tool to troubleshoot missing or corrupted system files in Windows 8.1, Windows 8, Windows 7 or Windows Vista. support.microsoft.com
If that doesn't help we probably have a corrupted VC++ DLL in Windows. In the Windows control panel uninstall ALL installations of VC++ 2010 and 2015/17/19 - there may be several of each. Then replace them, you'll just need these I think (two installers in each case, the x86 and x64 ones):

Download Microsoft Visual C++ 2010 Service Pack 1 Redistributable Package MFC Security Update from Official Microsoft Download Center

www.microsoft.com

Latest supported Visual C++ Redistributable downloads

This article lists the download links for the latest versions of Visual C++ Redistributable packages. support.microsoft.com
Good luck!  

That's bad news, the problem is deep in Windows then it seems. One last try before you'll need to look at a reset or reinstall!

I'm afraid this is a bit of work, but please delete this list of files (about 50 in total)

C:\Windows\SysWOW64\mfc100.dll
C:\Windows\SysWOW64\mfc100u.dll
C:\Windows\SysWOW64\msvcp100.dll
C:\Windows\SysWOW64\msvcr100.dll
C:\Windows\SysWOW64\msvcr100_clr0400.dll *
C:\Windows\SysWOW64\xinput1_3.dll
C:\Windows\System32\mfc100.dll
C:\Windows\System32\mfc100u.dll
C:\Windows\System32\msvcp100.dll
C:\Windows\System32\msvcr100.dll
C:\Windows\System32\msvcr100_clr0400.dll *
C:\Windows\System32\xinput1_3.dll

* you may need to change user permissions on these two files before you can delete them. If they won't delete, don't worry about them

PLUS all files that fit the pattern d3dx9_??.dll in both those folders; usually about 20 in each. Then run all 4 of those VC++ installers again (that is the x6 and x64 version of 2010 and 2015/17/19). The run the dxsetup.exe from before as well. Then reboot.

Good luck!