Every time I restart my MacBook Pro (2015, latest Mojave), along with my actual Macintosh HD icon another icon literally named “Mystery” shows on the Desktop. It shows it to be a 1 TB drive, as is my actual drive. It shows it to contain almost the same, but not quite, amount of free space. When I open Mystery it shows zero items, though. I can readily unmount it with no *apparent* problem.
Any ideas for me? Might it be harboring bad things? I’d like it to go away forever.
Thanks.
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John Russell
Under Finder, Preferences, General, which items are checked? Is Connected Servers checked? If so, does the item disappear when you uncheck it? That means it is something connected to your network. But it disturbing that you have no idea what it is. Are there any drives connected to your network, or other computers that could be sharing a drive?
Connected Servers was checked. I unchecked it and restarted, but Mystery HD came right back. When I unchecked Show Hard Disks both my Macintosh HD and Mystery HD disappeared, then came back when I rechecked that box. Oh, well, no bad side effects at this point. Thanks.
John: OK, so this is seen as a connected hard drive, not a network one. But you say there are no other connected drives? I wouldn't leave this. I would have it checked out. Could be a sign of hard drive issues. Back sure you backup(s) are current! Have you thought of booting into recovery mode, running Disk Utility from there, and using Disk First Aid to see if it finds anything?