1. Click on the application icon in the macOS menu bar and select Quit.

2. Open Kaspersky Internet Security 18 for Mac. For the guide on how to open the application window, see this article. 

1. Uninstall Kaspersky Internet Security 18 for Mac. For the uninstallation guide, see this article.
2. Restart your computer.
3. Install Kaspersky Internet Security 18 for Mac again.

We do not recommend that you perform the actions described below unless they are required and guided by a Customer Service engineer.

Tracing is writing the detailed information about the performance of the application to a file. Support engineers use trace files for identifying the issue in the application.

To get traces of the application performance:

1. Open the Preferences window in Kaspersky Internet Security 18 for Mac. If you are not sure how to open the Preferences window, see this guide.
2. Go to the Information tab and select the check box Enable tracing.

3. Restart Kaspersky Internet Security 18 for Mac.
4. Reproduce the issue.
5. Return to the Preferences window and clear the Enable tracing check box. 
6. Restart Kaspersky Internet Security 18 for Mac.

Send a request to Kaspersky Customer Service by choosing the topic of your request. Attach the trace files to your request.

Trace files are saved to Macintosh HD/Library/Logs/Kaspersky Lab.

Library is a hidden folder. To access the folder:

1. In Finder, select Applications → Utilities → Terminal.

2. Enter the command:
3. chflags nohidden ~/Library

3. Press Enter on the keyboard.

To hide the folder, use the command:

chflags hidden ~/Library