Now open System Preferences > Security & Privacy > General.Open System Preferences > Keyboard > Shortcuts and switch Full Keyboard Access to All controls. Open System Preferences > Keyboard > Shortcuts and enable Use keyboard navigation to move focus between controls. If pressing Allow button using the mouse doesn't give any positive results, use the steps described below: Google Chrome® is quit and not running at the moment.Once Allow button is successfully used, macOS® will store this record and it would be possible to continue using previously disconnected devices and install their software/drivers back. It has been proven that only a presence of MagicPrefs preference pane renders the Allow button unusable. Temporarily disconnect such devices from the Mac and remove their software/drivers. Presence of third-party input methods and their software/drivers could possibly cause the inability to press Allow button. No third-party input methods (keyboards, mouses, touchpads, graphics tablets) and their software are present at the moment Allow button is pressed.As mentioned above, due to macOS® security limitations it's not possible to press Allow button (nothing will happen as a result of pressing it) remotely (any source of remote connection). If it's not possible to click Allow button or after clicking it nothing happens, ensure that the following recommendations are followed: Open System Preferences > Security & Privacy > General > click Allow next to the corresponding message: Resolutionīefore performing the instructions below quit Google Chrome® browser using its Dock context menu > Quit, if it's running now. Moreover, it's not possible to press Allow button if a connection to Mac established remotely due to security-related configuration of macOS® to block any security-related actions for remote connections. Until the user approves the KEXT, future load attempts will cause the approval UI to reappear but will not trigger another user alert.įor more information please refer to the Apple®'s official tech note: Technical Note TN2459. This approval UI is only present in the Security & Privacy preferences pane for 30 minutes after the alert. Third-party kernel extensions (KEXTs) that were already present when upgrading to macOS® High Sierra are granted automatic approval. MacOS® High Sierra 10.13 introduces a new feature that requires user approval before loading newly-installed third-party kernel extensions. I am trying to press 'Allow' button but nothing happens.If you want to enable these extensions, open Security & Privacy System Preferences. A program tried to load new system extension(s) signed by "Parallels International GmbH". When I start Parallels Desktop for Mac on macOS® High Sierra or higher, I get the following warning:
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