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[Solved] This Application Was Unable to Start Correctly (0xc000007b)

Updated on Apr 03, 2019 by Brithny to Backup and Recovery

Summary:
You may see an error message says that 'This application was unable to start correctly (0xc000007b). Click OK to close the application.' when you are trying to open an application on Windows 7/8/10. Relax! This post provides tried and true solutions to fix the error easily.
PAGE CONTENT:
What is error code 0xc000007b?
Part 1. Quick methods to fix "the application was unable to start correctly" error
Part 2. Advanced solutions to fix error code 0xc000007b in Windows 7/8/10

What Is Error Code 0xc000007b

If you’re seeing "The application was unable to start correctly (0xc000007b)" error in Windows 7/8/10, you’re in the right place. 0xc000007b application error is very common and users may encounter it on a regular basis compared with other error such as 0x80070002, 0x80070057, 0x80004005 or 0x80070005. Typically you'll see this error when there's a mixing of 32-bit and 64-bit versions of Windows and applications. You may also encounter this problem when you are trying to run a game or program. 

this application was unable to start correctly

However, this error doesn't mean that it is beyond repair or the end of involved software. Below are various methods, most of which are simple, which you can use to try and fix the 0xc000007b error. You may only need one but in some cases, you'll need a combination of them. 

Part 1. Quick Methods to Fix "the Application Was Unable to Start Correctly" Error

There are no defined solutions to deal with this application error. In many cases you may need more than one of fixes, thus you need to try them one after another if the first doesn't work for you.

Method 1. Restart Your Computer

The first thing to try is restarting Windows. Sounds too good to be true, but it sometimes yields results.

Method 2. Reinstall the Application

You can also try re-installing the game or program you're trying to run - simple but sometimes very effective.

Method 3. Update .NET Framework

In most cases, it's Microsoft .NET framework causing the issues. You can download the latest version of .NET Framework from Microsoft. 

Method 4. Update Your Windows

Updating your operating system can fix the bugs that cause troubles. Besides, some features and programs built in Windows, such as DirectX and .NET Framework, can also be updated during the process. It is recommended that you update your operating system and see if this can help you fix your 0xc000007b error.

When it's installed (or re-installed) reboot and try your app or game again.

Part 2. Advanced Solutions to Fix Error Code 0xc000007b in Windows 7/8/10

If the quick fix doesn't help much, you'd better follow the advanced solutions to make the applications start correctly. 

Solution 1. Running in Compatibility Mode

Running the application in compatibility mode seems to fix this issue for a lot of users. When you come across a 0xc000007b error, you can try running your application in compatibility mode and see if this is helpful.

1. Right click on the application icon and select "Properties".

2. Click Compatibility tab Click "Run compatibility troubleshooter". Check "Run this program as an administrator". Try the recommended settings. Then hit "OK".

run in compatibility mode to fix your error

try the recommended settings

3. Try running your application and see if this method fixes the error.

Solution 2. Upgrade Windows 10 from 32 bit to 64 bit

Specifically, you are attempting to start an application which is designed to run on the 64-bit operating system. But your computer is running 32-bit Windows. The 32-bit application cannot load a 64-bit DLL, thus the mixing up 32 bit with 64-bit environment brings about problem. Therefore, a good choice is to upgrade Windows 10 from 32 bit to 64 bit.

Before you upgrade to 64-bit, you must back up all of your important files with a free backup program. EaseUS Todo Backup allows all Windows users to back up their data under Windows 10/8/7 etc with simple clicks. It's free to back up anything you need. 

Tip
You'd better create the backup file on an external disk or on the cloud in case the local backup gets corrupted or destroyed.

Step 1: Launch EaseUS Todo Backup software and then choose "File Backup", "Disk/partition Backup" or "System Backup" for different backup purpose.

Step 2: Choose the system, disk partition, files or apps that you want to back up. Then select a destination where you want to store the backup file.

Step 3: Click "Proceed" to start the data backup process.

back up data with easeus todo backup

Solution 3. Change the Value of the LoadAppinit_dlls Key

Since the problem is caused by unsigned or corrupted DLL, we can use Reget.exe to solve this problem. We can change the value of the LoadAppinit_dlls key to 0. LoadAppInit_dll basically is a mechanism that starts the DLLs in its reg-key when the program starts. So changing its value to 0 might solve the problem.

1. Hold Windows key and press R.

2. Type regedit.exe and press Enter

type regedit.exe and open it

3. Go to this path HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows.

4. Double click "LoadAppInit_Dll". Change its value data to 0 and click "OK".

5. Restart your computer

Solution 4. Check the Disk to Fix the Error

Hard drive issue is likely to give rise to various problems and checking hard drive can remove these problems. You can follow steps given below to check your hard disk for errors.

1. Click the Start menu and type cmd. Right-click Command Prompt in the result and select Run as administrator.

2. Type chkdsk c: /f /r in Command Prompt and press Enter key. This means you are going to check and repair the C drive. If you want to check another drive, replace c with the corresponding letter of that drive.

check the disk to fix your error

3. If your Windows is installed in drive C, then you'll get the message "Chkdsk cannot run because the volume is in use by another process. Would you like to schedule this volume to be checked the next time the system restarts? (Y/N)" Type Y and press Enter key.

4. After that check and see if the problem is solved.

If you still have problems, never hesitate to ask us for help!