Application launch error 0xc0000005

Application startup error 0xc0000005 appears on the screen in several cases. This problem arises after:

  • installation of updates by the operating system;
  • problems with the memory module;
  • problems with the registry;
  • failure of the antivirus;
  • malfunction of DEP.

Most often, this bug is encountered by users whose computers use illegal versions of windows 7, 8, 10 or XP. However, security is not guaranteed to owners of licensed operating systems. This article will help you solve the problem if it occurs immediately and prevent it from reoccurring.  

How to fix the error

At the beginning of the article, variants of problems were proposed, the presence of which causes an unpleasant error in the operation of your PC. By performing the steps below one by one (until the issue is resolved), you will get rid of the error 0xc0000005. Let’s get started:

Check the latest updates

As noted above, one of the main reasons why an error occurs when starting the application 0xc0000005 in windows 7, 8, 10  is updates. To remove it, uninstall the latest updates downloaded by the system. Press Win + R to open the Run window. Enter the command “cmd” there, which will allow you to open the command line.

Use the command “wusa.exe / uninstall / kb: 971033, where numbers are the number of the file to be deleted. Service packs such as:

  • KB: 2882822;
  • KB: 2858537;
  • KB: 2872339;
  • KB: 971033.

Then turn off automatic system updates. They will not get on your PC, which means that the appearance of a bug is excluded again.

Memory problems

The second option assumes that the described bug appears on a blue screen (screen of death), and the computer simply does not start. Then try manipulating the RAM slats:

  • check if you have enough memory space;
  • fit the planks firmly into the slots.

If the problem persists, and the RAM strips are working properly and you have not touched them, try replacing them with new ones, and then test the system.


Did you find an error after updating or installing a device driver on your PC? Then just rollback / uninstall the driver. What to do for this? Go to “Device Manager” (right-click on the “My Computer” icon). Select the device whose driver you installed and click Properties.

In the tab that opens, select the action you need, and the problem will disappear.


Application startup files quarantined by the antivirus are another likely cause of error 0xc0000005. Scan the quarantine data for such files. If they are there, mark them as exceptions.

In addition, carefully check if your PC is infected with viruses in order to exclude the possibility of problems due to them.


Invalid registry entries can be the source of this bug. Use the well-proven CCleaner utility to check and fix it. It is available for free download on the official website ( With the program open, click on the “Registry” item, run “Troubleshoot” and then click on “Fix Selected”.

Turn off DEP

This feature neutralizes attempts by malicious programs to run unwanted code in RAM that DEP uses. In fact, its task is to protect your computer from viruses. Sometimes its actions negatively affect the performance of other programs. Disabling its effect on certain programs will eliminate the possibility of a crash. To do this, follow the instructions below:

  • right-click on “My Computer”, select “Properties” there;
  • then open the tab “Advanced system settings”;
  • a tab with the “Performance” and “Parameters” windows will appear;
  • select “Preventing Actions”, “Enable DEP for all programs and services except those selected below”, select the program and click “OK”.

If none of the suggested methods helped, use a rollback of the OS to a stable state. And when the crash affects one application, try reinstalling it or installing a different version.

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