How to uninstall USB to VGA Adapter's drivers?

Usually drivers come with an uninstaller. Redownload the installation package/dmg of the driver if necessary and use the uninstaller included there.


In the specific case, the driver can be redownloaded from the web site linked in the question.

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It contains both an installer and an uninstaller. From looking at it, the following files get removed

/Library/Audio/Plug-Ins/HAL/MCTT6Audio.driver
/Library/Extensions/MCTTrigger2.kext
/Library/Extensions/MCTTrigger6USB.kext
/Library/Extensions/MCTTriggerGraphics.plugin
/Library/Extensions/Trigger5Core.kext
/Library/LaunchAgents/com.mct.USBVGASync.plist
/Library/LaunchDaemons/tw.com.mct.TriggerDriver.plist
/System/Library/Extensions/MCTTrigger2.kext
/System/Library/Extensions/MCTTrigger6USB.kext
/System/Library/Extensions/MCTTriggerGraphics.plugin
/System/Library/Extensions/Trigger5Core.kext
/System/Library/Services/USBVGASync
/usr/local/libexec/MCTTriggerDriver
/usr/local/sbin/USBVGASync

After removing the files a restart is required.