1. In the main window of Kaspersky Small Office Security, click the settings button in the lower-left corner. To learn how to open the application, please refer to the instructions in this article.
2. Go to the Protection section. 
3. Use the toggle to enable or disable Web Anti-Virus.

There are two protection modes in Kaspersky Small Office Security:

• Interactive protection mode. The application notifies you about all potential threats to the operating system and prompts you to either allow or block specific actions.
• Automatic protection mode. The application automatically takes the recommended action when it detects a potential threat.

By default, when Kaspersky Small Office Security detects a threat, it automatically takes the action determined by Kaspersky Lab experts. You can disable automatic actions and enable notifications about threats in the application settings:

1. In the main window of Kaspersky Small Office Security, click the settings button in the lower-left corner. To learn how to open the application, please refer to the instructions in this article.
2. Go to the General section.
3. Select or clear the Perform recommended actions automatically check box. By selecting the check box, you enable the automatic protection mode. By clearing the check box, you enable the interactive protection mode.

The selected mode will be enabled.

1. In the main window of Kaspersky Small Office Security, click the settings button in the lower-left corner. To learn how to open the application, please refer to the instructions in this article.
2. Go to the Protection section and click Web Anti-Virus.
3. In the Security level section, select a level:
   • High. Suitable for active Internet users. It ensures maximum protection of the computer, but reduces its operating speed. You are advised to configure the settings to improve the computer's speed.
   • Recommended. Set by default. It ensures optimal protection and operating speed of the computer.
   • Low. Suitable for those who rarely use the Internet. It ensures minimal protection of the computer, but does not reduce its operating speed. Before selecting this level, perform a full scan of the computer.
4. In the Action on threat detection section, select:
   • Select action automatically. The application will automatically take the recommended action when it detects a potential threat.
   • Prompt on detection. The application will notify you about suspicious activity and prompt for your decision on whether to block or allow it. This option is available if interactive protection mode is selected.
   • Block. The application will block a dangerous object and display a message about an infection.
   • Allow. The application will allow the object to be opened or downloaded, but will scan it for viruses after it is downloaded to the computer.

When the application detects a potential threat, it will perform the action that you have set.

1. In the main window of Kaspersky Small Office Security, click the settings button in the lower-left corner. To learn how to open the application, please refer to the instructions in this article.
2. Go to the Protection section and click Web Anti-Virus.
3. Click Advanced Settings.
4. Enable automatic activation of the Kaspersky Protection extension in browsers. To do so, select the appropriate check box.
5. Enable URL Advisor on websites:
   • Select Check URLs → On all websites except those specified → Manage exclusions and add the websites on which links do not need to be scanned.
   • Select Check URLs → On specified websites only → Configure checked websites and add websites. The application will scan links only on those websites.
6. Click Configure URL Advisor to select the links and website categories to scan.
7. Click Configure trusted URLs and add websites that you trust. The application will not scan them.
8. Select the databases of web addresses that must be used to conduct an additional scan.

Links and websites will be scanned according to the settings that you have configured.