Support: Generate a complete memory dump in Windows

How to generate a complete memory dump in Windows

In case of deep troubleshooting issues, Avast Support may request a complete memory dump from your computer. A complete memory dump is not generated automatically, and is usually requested if a kernel memory dump or small memory dump do not help resolve the issue. Please note that this procedure works only on systems which are not frozen completely.

For information about other types of dumps Avast may request, visit the links below:

  1. Log in to Windows as an Administrator, or as a user with administrator permissions.
  2. Download avkb57.zip.
  3. Open and run the contained file FullCrashOnCtrlScroll.reg to apply necessary changes to your Windows registry.
  4. Restart your computer and wait until the system or program freezes or slows down. At that moment, force a Windows crash by holding down the right Ctrl key and pressing the Scroll Lock key twice.
  5. A blue screen (BSOD) appears. Windows generates a memory dump and restarts your computer automatically.
  6. Locate the file MEMORY.DMP in the Windows folder C:\Windows\MEMORY.DMP by default, and provide it to Avast Support via the Avast FTP server.
  1. Log in to Windows as an Administrator, or as a user with administrator permissions.
    If you forgot your password, refer to the instructions on Microsoft's website for your version of Windows:
  2. Download the file avkb57.zip and click Open in the window that appears.
  3. Download the file avkb57.zip, select Open with in the window that appears, then click OK.
  4. Download the file avkb57.zip. At the bottom of your browser, click the arrow next to the file name and select Open.
  5. Download the file avkb57.zip and click Open.
  6. Double-click the folder avkb57, then double-click the FullCrashonCtrlScroll.reg file and select Run.
  7. When prompted, click Yes to allow the application to make changes to your PC.
  8. Click Yes and OK to apply necessary changes into your Windows registry.
  9. Restart your computer, log in to Windows with administrator permissions, and wait until the system or program freezes again.
  10. Manually force a Windows crash by holding down the right Ctrl key and pressing the Scroll Lock key twice (right Ctrl + 2x Scroll Lock: the Ctrl key is found under the Shift key. The Scroll Lock key is found in the top right corner of the keyboard.)
  11. A blue screen (BSOD) appears. The system generates a memory dump (progress is indicated in percentage) and restarts automatically.
    If your computer does not restart automatically, restart your computer manually by pressing the Reset or Power button.
  12. Log in to Windows with administrator permissions and locate the file MEMORY.DMP in the Windows folder (C:\Windows\MEMORY.DMP by default) and provide it to Avast Support by following the instructions in the article below:
For more details about this troubleshooting procedure and registry entries contained within the FullCrashOnCtrlScroll.reg file, please read the following article on Microsoft's website:
  • All available Avast products for Windows
  • Microsoft Windows 10
  • Microsoft Windows 8.1 / Pro / Enterprise
  • Microsoft Windows 8 / Pro / Enterprise
  • Microsoft Windows 7 Home Basic / Home Premium / Professional / Enterprise / Ultimate
  • Microsoft Windows Vista Home Basic / Home Premium / Business / Enterprise / Ultimate
  • Microsoft Windows XP Home / Professional / Media Center Edition

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