VirtualBox 5.2 Won't Install on Mac OS 10.13

Trying to install VirtualBox 5.2 on a Mac running OSX 10.13. The installation fails with an installer message reading "The installation failed."

I've tried the 2 solutions I've been able to find and neither have worked.

I tried clicking "allow" in the "Security & Privacy" preference panel where the download gets blocked. Each time, I ejected the image before trying again with no luck.

I also tried entering sudo spctl --master-disable in the terminal before trying again, but still no luck.

After the failure, the application icon does still appear in the downloads folder, but I'm supposing this isn't a good installation and I'll run into problems using it? Thoughts?

Solution 1:

I had these same issues installing VirtualBox 5.2 on an employees Mac running 10.13, via remote desktop. After trying all the things you've mentioned I kept googling, eventually finding this thread saying it's a screensharing issue.

There is a report that you cannot allow kext if you are using Screen Sharing.

I use magic perf to intercept various touchpad actions. [...] If you have this problem try to disable any apps that my capture and forward clicks.

Apple are disabling the "Allow" button if it's pressed by anyone BUT the Mac touchpad, directly.

So, if you're also attempting this via some sort of indirect method, or are using something like Magic Perf or Steermouse, disable those and make sure the click on "Allow" is as direct as possible.

Hope this helps someone out there.

Solution 2:

This worked for me on High Sierra 10.13.4:

• System Preferences > Keyboard > Shortcuts > Select 'All Controls'

Then:

• System Preferences > Privacy & Security > Press 'Tab' until 'Allow' is selected > Press 'Spacebar'

Note: the Privacy & Security page may need to be unlocked before 'Tab' will work.

Hope this helps!

Credit to @dansanduleac's answer on GitHub