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"Allow" button not working when System Software is blocked from loading

I am trying to run VMware and it is being blocked. I go to Security & Privacy and click the allow button next to this message/alert (System software from developer VMware, Inc. was blocked from loading) and the icon shows that it is being clicked but nothing happens and the message/alert remains the same. I tried rebooting my iMac Pro running MacOS High Sierra V 10.13.2 and the message remains and the allow button will not work even when I unlock the changes with my system password.


Any suggestions?

Posted on Jan 7, 2018 1:27 PM

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Posted on Apr 6, 2018 12:24 PM

I have just figured out the answer to this question. On a different post, I read this comment from someone "Because of security reasons pressing the Allow button won’t take effect if you are connecting to the machine via Remote Desktop, or if the mouse/trackpad is emulated by a 3rd party application (MagicPrefs, BetterTouchTool, Synergy, etc.)"


Even though I dont have a third party emulator of the same kind in the examples, I realized maybe TeamViewer, and other similar apps might do the same thing - to allow mouse/trackpad input while remote controlling mac. So I started closing apps one after the other and none seemed to have helped. Finally, I disconnected the ethernet cable, and turned off wifi. I was then able to click 'Allow'.


Hoping this would save someone a headache who is on the same boat as me.

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"Allow" button not working when System Software is blocked from loading

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