usb flash drive not recognized

SanDisk 32GB ultra flair usb 3.0 flash drive will not be recognized after plugging into USB port in iMac27 June 2017 running macOS Sierra version 10.12.6

[but will open in iMac 24 2007 running OS X El Capitan version 10.11.6].


Any ideas?

iMac, Mac OS X (10.7.5), iMac27

Posted on Feb 19, 2018 1:26 PM

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Posted on Feb 19, 2018 1:38 PM

Thanks for this suggestion. I had already checked this preference.


Someone else suggested that I leave flash drive plugged while restarting computer. This worked. Sorry, I failed to write down the name to give the well deserved credit for this.

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usb flash drive not recognized

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