Finder Window too many HD under Locations

InTheWoods Said:

"Finder Window too many HD under Locations: Please see attached image. It is of my finder window. There are over 40 Macintosh HD. I have no clue why or how to stop them from reproducing. Thanks in advance....Karen: Disregard. Restarting got rid of them. Thanks anyway...'"

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How so? Providing the fix would help many, for certain.

InTheWoods Said:

"Nothing. I'm going to be stuck with Monterey until I replace my Mac...."

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Downgrading the MacOS

Considered downgrading the macOS?

You would Manual Reinstall:

Create a Time Machine Backup. From there, fully delete the partition. From, install macOS X 10.12 Sierra. From there, migrate it all back. - Use a USB Bootable Installer to create It.

A. Create a Time Machine First...

Create a Time Machine Backup of your Mac, that way you can have something to restore your Mac from, should anything go wrong with the install, and to migrate it all back. Use an External Hard Drive at least 1.5 times the size of the Internal Hard Drive.

B. Then... Reinstall the Mac OS that was Previously Installed.

I. Create a USB Bootable Installer:

1. Go Here: How to Create a Bootable Installer for macOS - Apple Support
2. Use: The in Terminal In Catalina to create this for macOS X 10.12 Sierra

II. Erase the Hard Drive:

1. Boot: into Recovery Mode: Hold Down [Command + R] upon boot
2. Select: Disk Utility
3. Erase: the all partitions

III. Boot From USB Bootable Installer:

1. Plug in: the High Sierra USB Bootable Installer
2. Hold Down: Option upon Boot
3. Proceed: from there as necessary with the Install

C. Once Installed...

I. Create a Second Time Machine First...

Create a Time Machine Backup of your Mac, that way you can have something to restore your Mac from, should anything go wrong with the install, and to migrate it all back. Use a Second External Hard Drive at least 1.5 times the size of theInternalHard Drive.

II. Use Migration Assistant:

1. Go Here: How to move your content to a new Mac - Apple Support
2. Scroll to: Use Migration Assistant
3. Proceed from there as necessary

III. Reinstall Manually

1. Contact: the Developer for the license
2. Update: the System Software (except for the macOS)
3. Proceed from there as necessary

InTheWoods Said:

"As indicated, I did a restart. Kw"

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Thank for clarifying.

Seems I've misinterpreted your post. Took it as is restarting [the same procedure] fixed it.

So, have you made any changes to your Mac prior to all of this (i.e. installed an update)?