#MACOS BIG SUR VIRTUALBOX INSTALL#
If the above solution were not fixing the problem, then see if there is any update available for the VirtualBox and install the update if there is any. Quit the VirtualBox and launch it again.If the errors appear again, check the System Preferences > Security & Privacy > General tab and see if there is a warning like System software from developer “Oracle America, Inc.” was blocked from loading along with an Allow button that appears below the App Store and identified developers option. Keep the System Preferences screen open and launch the virtual box and then the virtual machine.
Under the Allow apps downloaded from section, make sure the App Store and identified developers option is selected.In the General tab, Unlock the security and privacy screen to make changes by clicking on the lock icon at the bottom of the screen and provide your authentication.Go to Security & Privacy > General tab.Still I’m adding this solution here, just to check the settings before moving to the next solution. As we are discussing the errors obtained after updating macOS, this solution may be irrelevant. Usually this solution is needed when you get errors after installing VirtualBox.
Solution 4: (Allow identified developer in Security & Privacy) If you are still getting the NS_ERROR_FAILURE (0x80004005) error, then try the below solution. Launch VirtualBox and the virtual machine.If not then add it to the list using the + button and select the check boxes. From the left panel, go through the permissions Accessibility, Input Monitoring, Full Disk Access, Files and Folders and make sure VirtualBox.app is listed under the allow list (right panel) and the checkbox is selected.Unlock the privacy screen to make changes by pressing the lock icon at the bottom left of the screen and provide your authentication.In the Mac, launch the System Preferences.Launch terminal and run the command csrutil status and make sure SIS is enabled.Allow the mack to launch in normal mode.
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