You can change the language only on macOS 10.15 or later versions.

To change the application language

1.Go to Apple menu .

2.Click System Preferences.

3.Click Language & Region.

4.Click Apps.

5.Select Dr.Web for macOS and choose the application language.

macOS blocks kernel (system) extension loading. For SpIDer Gate and SpIDer Guard to operate correctly, allow loading of system software from Doctor Web Ltd. in the Security & Privacy System Preferences pane.

1.Go to Apple menu .

2.Click System Preferences.

3.Click Security & Privacy.

4.If preferences are unavailable, unlock them. To do that, click at the bottom and enter your user name and password.

5.Click Allow next to the message about blocking the Doctor Web Ltd. system software.

•Make sure that your license period hasn’t expired. To check the license period and buy a new license, go to the License section of Dr.Web  main window.

•You may have upgraded the operating system and installed version of Dr.Web does not support the new version of macOS. Uninstall the current version of Dr.Web and reinstall the application.

This may be caused by high activity of system processes, which consume a lot of memory resources. Close unused apps to free up some memory. You can view the information and manage running processes with the macOS standard tool Activity monitor.

If the issue persists, try reinstalling the application.

Create a new rule for the application that can’t get access to the internet in the Firewall preferences.

Check the sound volume in System Preferences and on speakers.

Preferences of some components are protected. If preferences are unavailable, unlock them. To do that, click at the bottom and enter your user name and password.

If AdGuard VPN tunnel works incorrectly, do the following steps:

1.Open AdGuard preferences.

2.Click Network.

3.Make sure that Automatically filter applications check box is selected.

4.Click Applications.

5.Add Dr.Web for macOS to the list of filtered applications.

Make sure that your license period hasn’t expired. To check the license period and buy a new license, go to the License section of Dr.Web  main window.

•Dr.Web loads virus databases every time it starts scanning or attempts to cure an object. Thus, these operations may take some time.

•Freezes and lags may also be caused by high activity of system processes which consume a lot of memory resources. We recommend you to close unused apps to free up some memory. You can find more information and manage running processes in the macOS standard tool Activity monitor.

•Files (or folders in which they are contained) may be excluded from the scan.

•Some files may be skipped during scanning because they are corrupted or password-protected or you need administrative rights to access such files. If there are archives in the list of skipped objects, try to unpack them before scanning.

If Scanner freezes, try closing and restarting the app. If the issue persists, try reinstalling the application.

This issue can occur if you didn't enable full disk access for Dr.Web for macOS.

To enable full disk access

1.Go to Apple menu .

2.Click System Preferences.

3.If preferences are unavailable, unlock them. To do that, click at the bottom and enter your user name and password.

4.Click Security & Privacy.

5.Go to Privacy tab.

6.Click Full Disk Access.

7.Add Dr.Web components to the list of allowed ones.

8.Restart your Mac for the changes to take effect.

•Make sure that the corresponding category check box is selected on the SpIDer Gate tab.

•If connection to a website was established before SpIDer Gate was enabled, disable and enable SpIDer Gate and restart the browser.

•Check if the website uses a secure connection (if it does, a lock appears in the browser address bar). If a secure connection is used, select Scan encrypted traffic check box on the Network tab and restart the browser.

•SpIDer Gate does not block websites that connect through FTP/SPDY or HTTP/2.0.

•This error may occur because some browsers or mail clients do not refer to the system certificate storage while sending and receiving encrypted traffic. In this case, install Doctor Web certificate, which you can obtain by clicking Export button on the Network tab.

•If the browser or mail client was opened immediately after the installation, it might not have obtained the system security certificate. In this case, you need to restart your browser or mail client.

•Original server certificate may be untrusted. To check it, disable SpIDer Gate and restart your browser or mail client. If the error persists, it means that the certificate is untrusted and we do not recommend that you visit this website.

This website is probably included in the blocked category of websites. To access the website, add it to exclusions.

•Check your internet connection.

•If you are using a proxy server, try turning it off and running an update again. To run the update manually, select Update Is Required in Dr.Web menu .

•If the router is working in the Connection on demand mode, make sure that the connection is constantly active (maximum idle time is 0).

•Make sure that your license period hasn’t expired. To check the license period and buy a new license, go to the License section of Dr.Web  main window.

•License for the trial version is tied to a checksum of the operating system. You may have upgraded the operating system or other software or replaced computer components and the checksum has changed.

•License for the trial version is tied to the MAC address of your device. You may have changed the MAC address and license has become invalid.

Contact Doctor Web technical support or activate a new trial version using another email address.

•Check your internet connection.

•If you are using a proxy server, try turning it off and running an update again. To run the update manually, select Update Is Required in Dr.Web menu .

•If the router is working in the Connection on demand mode, make sure that the connection is constantly active (maximum idle time is 0).