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How to Resolve If MacBook Not Connecting To External Hard Drive? - www.office.com/setup
How to Resolve If MacBook Not Connecting To External Hard Drive? - www.office.com/setup
For more help or information, the customer can navigate to Microsoft via office.com/setup.

If the users complaint that their MacBook is not connected to external Hard Drive then for the solution,
In case, you don’t have T2 chip then you should turn off your MacBook. At this point, you should press left Shift, left Control and left Option (Alt). At this point, you should hold the Power button also for 10 seconds. At last, you should release the keys and then boot your MacBook. www.office.com/setup