1. Log into Windows as an Administrator, or as a user with administrator permissions.
   If you cannot remember your password, refer to the instructions on the Microsoft website for your version of Windows to recover or reset it:

   • Windows 10 | Windows 8 | Windows 7 | Windows Vista
2. Download the avkb57.zip file and click Open.
3. Download the avkb57.zip file, select Open with, then click OK.
4. Download the avkb57.zip file and, at the bottom of your browser, click the arrow next to the file name and select Open.
5. Download the avkb57.zip file and click Open.
6. Double-click the avkb57 folder, then double-click the FullCrashonCtrlScroll.reg file and select Run in the Security Warning dialog.
7. When prompted, click Yes to allow the application to make changes to your PC.
8. Click Yes, then OK to apply the necessary changes to your Windows registry.
9. Restart your PC, log into Windows with administrator permissions, and wait until the system or program freezes again.
10. Manually force a Windows crash by holding down the CTRL key on the right side of your keyboard and pressing the Scroll Lock key twice (right CTRL + 2x Scroll Lock).
11. A blue screen appears (the "Blue Screen of Death"). The system generates a memory dump (progress is indicated in percentage) and restarts automatically.
    If your PC does not restart automatically, restart your PC manually by pressing the Reset or Power button.
12. Log into Windows with administrator permissions and locate the MEMORY.DMP file in C:\Windows (by default).

Once you have created the dump file, send it to Avast Support. Because the dump file is larger than 5 MB, upload it to the Avast FTP server using the instructions in the following article:

• Uploading files to the Avast FTP server

For more details about this troubleshooting procedure and the registry entries contained within the FullCrashOnCtrlScroll.reg file, refer to the following article on the Microsoft website:

• Forcing a System Crash from the Keyboard