How to Fix Unknown Software Exception 0x40000015 Error on Windows?

Issue: Hi. It seems that I’m in trouble. I run Windows 10 OS, which I have upgraded a couple of weeks ago. Recently, when I started my PC, a pop-up message showed up, which reads “The exception unknown software exception (0x40000015) occured in the application at location 0x0029fa4d. Click OK to terminate the program.” When I click I OK, the message disappears and the system seems to be working fine except a bit slowdown and random freezes. Nevertheless, the pop-up is quite irritating and it makes me think continuously that there is a kind of virus or serious issue on my system. Please advise! Thank you.

Solved Answer

Unknown Software Exception 0x40000015 Error is a Windows error message. It might pop-up on the screen on any Windows version. However, most of the complaints come from Windows 10 users. Most of the time the issue occurs due to the corrupted system files.

The 0x40000015 Unknown Software Exception error might show up when using any program. The main reasons that trigger the error:

  • corrupted system files;
  • incomplete installation of software;
  • updates installation problems;
  • incorrect uninstall;
  • accidental removal or replacement of Windows registry;[1]
  • etc.

Besides, it has been noticed that 0x40000015 error pop-up sometimes shows up due to the cyber infection or after PC’s recovery when a virus/malware/corrupted files are deleted. If you suspect that your device might be infected with malware, you should check and fix it with Fortect.

Therefore, this application error might show up anytime when using Windows computer. As soon as you hear a Windows error sound, you will notice a pop-up with the following information:

The exception unknown software exception (0x40000015) occurred in the application at location 0x350082db.
Click OK to terminate the program.

Note that the location of the error differs based on the program that was in use when the error appeared. However, methods to fix Unknown Software Exception 0x40000015 Error remain the same. If clicking OK on the error message did not help, and you still have to deal with this application error, try methods presented below to fix this issue.

Fix Unknown Software Exception 0x40000015 Error on Windows

Possible methods to fix Unknown Software Exception 0x40000015 Error on Windows

As soon as you start receiving 0x40000015 error code, our recommendation would be to run a full system scan with FortectMac Washing Machine X9 or an alternative program. That’s because it is capable of regognizing system errors, corrupted files, startup problems, and similar issues. Besides, this particular tool has a built-in antivirus (Avira), what means that it checks for viruses and malware as well. In case you are not willing to use additional software for 0x40000015 error fix, you can fix this issue manually.
In this video you will find information required to fix this problem:

Fix 1. Run System File Checker

Fix it now!
To repair damaged system, you have to purchase the licensed version of Fortect.

One of the main reasons why the error occurs is corrupted system files. Hence, running System File Checker[2] and automatically repairing corrupted files can help to fix 0x40000015 Error on Windows:

  1. Type cmd in the Windows search box.
  2. Right-click Command Prompt and choose Run as an administrator.
    Run Command Prompt
  3. When in Command Prompt, type the following command and click Enter:
    sfc /scannow
    Run system file check
  4. Wait until the program finishes scan and gives the notification about repairing corrupted files.
  5. Restart the computer and check if the application error is gone.

Fix 2. Update your antivirus

If 0x40000015 bug showed upsoon after Windows upgrade, it’s advisable to check if your anti-virus is up-to-date.[3] It sometimes happens that Windows updates damage a currently running antivirus. To check that, you should update your anti-virus to the newest version or delete it.

Fix 3. Install available updates

Fix it now!
To repair damaged system, you have to purchase the licensed version of Fortect.

Sometimes available software or operating system updates make programs crash or do not work properly, or they might fix corrupted files. Hence, you should check if there are any available updates:

  1. Click Start and open Settings.
  2. Navigate to Update & Security and click Windows Update.
    Install Windows Updates
  3. Click Check for updates button.
  4. If there are any available updates, install them by following instructions on the screen.

Fix 4. Uninstall useless software

Unknown Software Exception 0x40000015 error may also be the cause of certain software. Some programs tend to load some time after that actual system boot. That’s why this kind of error may appear a couple of minutes after system restart/boot. To check this issue, you should try clean boot of your system. For that, you have to perform the following steps:

  1. Click search and type msconfig in the search box.
  2. Select System Configuration and locate Services tab.
    Open Services tab in System Configuration
  3. Select Hide all Microsoft services and then click on Disable all.
  4. After that, find and click on Open Task Manager (on the Startup of the System Configuration).
  5. Here you have to disable all items and then close Task Manager.
  6. Finally, click OK and restart your PC.

If after that 0x40000015 error is gone, then you should check which programs you are not using for a long time and delete them. After that, reboot your device and check if the error still occurs.

Fix 5. Restore the system

Fix it now!
To repair damaged system, you have to purchase the licensed version of Fortect.

If none of the methods above helped to fix this application error, you should consider System Restore:[4]

  1. Boot your PC as an administrator. For that, you have to right-click on the Win key and select Command Prompt (Admin).
  2. After that, click on Win key and select All Programs > Accessories > System Tools > System Restore
  3. Select Restore my computer to an earlier time and click Next.
  4. When a confirmation window occurs, click Next again.
  5. Finally, restart your PC.

Repair your Errors automatically team is trying to do its best to help users find the best solutions for eliminating their errors. If you don't want to struggle with manual repair techniques, please use the automatic software. All recommended products have been tested and approved by our professionals. Tools that you can use to fix your error are listed bellow:

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Compatible with Microsoft Windows
Still having problems?
If you failed to fix your error using Fortect, reach our support team for help. Please, let us know all details that you think we should know about your problem.
Fortect - a patented specialized Windows repair program. It will diagnose your damaged PC. It will scan all System Files, DLLs and Registry Keys that have been damaged by security threats.
This patented repair process uses a database of 25 million components that can replace any damaged or missing file on user's computer.
To repair damaged system, you have to purchase the licensed version of Fortect malware removal tool.

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About the author
Lucia Danes
Lucia Danes - Security researcher

Lucia Danes is the news editor at UGetFix. She is always on the move because the eager for knowledge makes her travel around the globe and attend InfoSec events and conferences.

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