This article assumes that you have contacted Avast Support and they have asked you to send a log file. For information about contacting Avast Support, refer to the following article:

• Contacting Avast Support

Create a log file

1. Double-click the Avast Cleanup Premium icon on your desktop, or select the icon in the notification area of your Windows taskbar to open the application.
2. Click ☰ Menu ▸ Settings.
3. Select General ▸ Troubleshooting.
4. Ensure the boxes next to Enable debug logging and Send crash reports are ticked.
5. Restart your PC. After reboot, open Avast Cleanup Premium and reproduce the issue that caused you to contact Avast Support.
6. Click ☰ Menu ▸ Settings.
7. Select General ▸ Troubleshooting.
8. Click Send logs to Avast.
9. Click Yes when prompted for permission by the User Account Control dialog.
10. Enter your email address and a description of the issue, then click Collect + send logs.
11. When collection is complete, click Yes to close the Avast Cleanup Log Collector.

The log file is sent to Avast Support.