VERIFIED SOLUTION i

How to restore the Layer Control dialog or Explorer window in MapInfo Pro

Products affected: MapInfo Pro™
For 64bit versions v16 or older:
  1. On the HOME tab, click on the Tool Windows dropdown
  2. Click Layers
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For 64bit versions v17 or higher:
       1. On the Home tab, click on the Tool Windows dropdown
       2. Click Explorer 
The Explorer window replaces Layer Control and has all of the same plus additional functionality.

User-added image
UPDATED:  March 27, 2019