SOLVED! The Exception Unknown Software Exception (0xc0000409) – How To Fix

Once it comes to the operating system for computers nowadays, Windows is the number one choice for many people around the globe. Versatile and flexible, Windows gives a good account of itself in quite a few settings. Nonetheless, errors sometimes complicate operations on Windows and the running of apps is not an exception. If the “the exception unknown software exception (0xc0000409)” error prevents you from using apps, check out this article.

Actions To Take

Run System File Checker (SFC)

If you suspect that the reason for the error is corruption in the system files, make use of System File Checker (SFC). SFC is a built-in Windows tool that could find corrupted system files and replace them.

  • Step 1: Go to Search bar, type cmd, right-click Command Prompt and pick Run as administrator.
  • Step 2: In Command Prompt (Admin), run the command sfc /scannow.
  • Step 3: Allow the process to go all the way then restart your computer

Note: As SFC runs, it’s essential that you don’t disrupt the process as that would result in a lot of hassles.

Uninstall And Reinstall 

If the error only happens when you try to run a particular program, the best solution is to uninstall and then reinstall it. By doing so, you could get rid of problems that plague the program and its operations. Open Control Panel, locate the program that is prone to error and uninstall it via Add/Remove Programs. Next, download and install the program again then see how things turn out as you launch it.

Take Advantage Of System Restore

You believe that the “the exception unknown software exception (0xc0000409)” error, was caused by a recent change to your computer? Then you must consider using System Restore. System Restore will revert your computer to a previous state where there was nothing out of the ordinary. Keep in mind this method only work if you have created at least one restore point.

  • Step 1: Go to Search bar, type Control panel and hit Enter.
  • Step 2: Select Recovery and choose Open system Restore > Next 
  • Step 3: Choose a restore point of your liking then pick Next > Finish

Perform A Clean Boot

As you boot your computer in a “clean” state, only essential programs and services are loaded. That allows you to narrow down the source of the problem. If the “the exception unknown software exception (0xc0000409)” error vanishes in clean boot, one of the their-part programs must be at fault.

  • Step 1: Press Windows + R to open Run, type msconfig and hit Enter.
  • Step 2: In System Configuration, go to the Service tab, check Hide all Microsoft Services and hit Disable all.
  • Step 3: Navigate to Startup tab > Open Task Manager.
  • Step 4: Select the startup programs you don’t need then click Disable.

When you’re prompted to restart your computer, do so and see if the error persists.

Scan Computer 

Since the “the exception unknown software exception (0xc0000409)” error could be caused by malware, it’s wise to scan your computer using an antivirus program. Many antivirus programs exist and you don’t need to be an expert to use them. Once you have scanned your computer and removed malicious programs, you should be able to resume using your computer.

What Might Have Gone Wrong 

Overall, the “the exception unknown software exception (0xc0000409)” error is the result of Windows trying to execute instructions that it doesn’t understand. If the error gives you a hard time, consider the possibilities down below.

Corrupted System Files

System files play a key role in Windows because they tell your computer how to operate. If system files become corrupted for some reason, your computer wouldn’t know what to do and things start to go haywire. Hence, once it comes to the “the exception unknown software exception (0xc0000409)” error, you should give corruption in the system file some thought. 

Malicious Programs

One common cause for the “the exception unknown software exception (0xc0000409)” error is malicious programs (viruses, spyware, etc). Designed to wreak havoc on computers once entered, such programs can corrupt system files, tweak settings, change your system registry, compromise data,… Needless to say, as long as malicious programs remain, your PC cannot work as expected.

Incorrect Shutdown 

On occasions, errors would occur if you don’t shut down your computer correctly. For instance, you shut down your computer without closing all of the programs beforehand. Also, if your PC loses power out of the blue, there is a good chance that it’s going to act up in the next bootup. 

Improper Installation/Update Of Program

If you’ve recently installed or updated a program on your computer, it might be the cause of the “the exception unknown software exception (0xc0000409)” error. Issues during the installation/update of programs should lead to the overwriting of system files, instability and so on.

What Is A Software Exception?

A software exception is an anomaly or unexpected event that occurs during the execution of a program. Exceptions can be generated by both hardware and software. When a hardware exception occurs, it is typically due to a problem with the hardware itself, such as a failed memory or I/O device. Software exceptions are usually caused by programming errors but can also be caused by system failures, such as a loss of network connectivity.

What Are Application Exceptions?

Application exceptions are errors that occur when a program is running. They can be caused by incorrect code, invalid user input, or problems with the underlying system. Application exceptions are usually handled by the application’s error-handling routine, which can result in either termination or recovery from the exception.

Should I Use Application Exception For Coding? 

You should not use the application exception in your codes because that can lead to unpredictable outcomes. Application exception is meant to be used by the system, not by user code. If you use  application exceptions in your code, it could work for now but it can always break in later releases of the system

A Novice’s Guide

  • When in doubt, keep calm and reboot your computer.
  • Back up your PC every now and then.
  • Only download apps from reputable sites.

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