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VirtualBox sometimes fails to open guest session and encounters VERR_NOT_FOUND VirtualBox error, we need to add to the problematic virtual machine. Follow the steps mentioned below to do the same.

Well, VirtualBox 7.0 removed the Extensions tab, so there’s no way of doing the installation from within the app. Let’s fix both of those problems. What you’ll need to fix the VirtualBox 7.0 ...