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However, the automatic fix also works for other language versions of Windows.

If you would rather verify and update these keys yourself, go to the "Let me fix it myself" section. To automatically uninstall Microsoft Silverlight, click the button in the "Fix it for me" section. This issue can occur if an existing installation or uninstall has become corrupt. Microsoft Silverlight does not work as expectedĪttempts to restart the computer and try to upgrade, install or uninstall Microsoft Silverlight again end in the same results. Upgrade to another version of Microsoft Silverlight System Extension Blocked appears on new installations on macOS High Sierra 10.When working with Microsoft Silverlight you may encounter the following scenarios:.Once the "Allow" button has been cleared, follow the steps again to disable "Full Keyboard Access." if desired.Press "Space Bar" key to click on "Allow".

Press the "Tab" key to move around the window until the "Allow" button is selected.After performing those steps, navigate to System Preferences.Select "All Controls" under the "Full Keyboard Access." section.

Go to Apple menu > System Preferences.(by hitting the "Tab" key, and then pressing "Space bar" to click on it). > Security & Privacy > Click the Allow button. Enable the mouse or trackpad customization tool that you disabled from step 2.Disable or unload the mouse or trackpad customization tool that you are using.Uninstall Sophos Home from the computer.Disable the mouse or trackpad customization tools.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. If the problems persist, follow the 3 options below: READ THIS BEFORE YOU START: click the padlock to unlock Security & Privacy, this may help alleviate the issue. This causes the Allow button to not work, especially if it is clicked through screen sharing applications, such as Team Viewer. On macOS High Sierra 10.13+, some mouse or trackpad customization tools conflict with the System Preferences pane. You are trying to load the Sophos Home kernel extension (KEXT) via System Preferences, but the Allow button does not respond when clicked.