Applies to: Sophos Home Premium and Free (Mac)

You are trying to load the Sophos Home kernel extension (KEXT) via System Preferences, but the Allow button does not respond when clicked.

Cause

On macOS High Sierra 10.13+, some mouse or trackpad customization tools conflict with the System Preferences pane. This causes the Allow button to not work, especially if it is clicked through screen sharing applications, such as Team Viewer.

Solution 

To resolve the issue, do any of the following options:

• Click the button locally.
  If you are accessing the computer through a screensharing software, advise another person present in front of the computer, to click on the Allow button.
• Disable the mouse or trackpad customization tools.
  1. Uninstall Sophos Home from the computer.
  2. Disable or unload the mouse or trackpad customization tool that you are using.
  3. Re-install Sophos Home.
  4. Enable the mouse or trackpad customization tool that you disabled from step 2.
  5. Go to Apple menu > System Preferences... > Security & Privacy > Click the Allow button.

Alternatively, you may use the keyboard to access the button (by hitting the "Tab" key, and then pressing "Space bar" to click on it) . Please follow these steps:
         

1. Go to Apple menu > System Preferences... >Keyboard>Shortcuts
2. Select "All Controls" under the "Full Keyboard Access..." section. 
3. After performing those steps, navigate to System Preferences... > Security & Privacy
4. Press the "Tab" key to move around the window until the "Allow" button is selected
5. Press "Space Bar" key to click on "Allow" 
6. Once the "Allow" button has been cleared, follow the steps again to disable "Full Keyboard Access..." if desired. 

Related information

• System Extension Blocked appears on new installations on macOS High Sierra 10.13
• Install Sophos Home on Mac computers