How to Remove A Hard Drive from Time Machine Backup?

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Time Machine is a simple and effective backup solution for all Mac users; it backs up your data automatically and can restore your complete Mac if something goes wrong. Some users split up their redundant Time Machine backups across numerous hard drives to further protect their privacy. On the other hand, you may decide that a certain computer no longer requires Time Machine.

In this case, you'll want to exclude a given drive from the backup procedure without erasing the entire Time Machine backup collection. It is simple to perform and will only prevent Time Machine from backing up to that drive; it will not disable Time Machine for other disks or remove any backups already made.

Creating a backup versus inheriting one

As long as there is adequate space on the backup drive, the new Mac can be configured to use the same backup drive as the old Mac that was backed up with Time Machine.

Inheriting the backup history from the previous Mac may be an option Time Machine presents during the initial backup if Migration Assistant was used to setting up the new Mac. Remember that Time Machine cannot continue copying just new files even if you opt to inherit the backup. Everything on the new Mac is automatically copied to the archive. There are upsides to inheriting, however.

When set up, files not on the new Mac can be restored from an old backup thanks to the ingenious "inherit a backup" feature. Time Machine automatically deletes backups from the older Mac when the backup drive is full.

Instead of overwriting the previous backup with the new one, Time Machine begins a new one. Assuming you have no plans to sell or get rid of your old Mac, that's wonderful news. You must manually delete the old backup set to make room. It isn't always simple, especially considering that "backup items cannot be updated," as Time Machine puts it.

How to remove a backup drive from Time Machine?

If you don’t want to use the old drive to back up your mac any more or you just want to disable Time Machine backup, just connect the backup drive to your Mac and then follow the guide below to remove the backup drive from Time Machine.

For macOS Ventura or later:

Step 1. Go to Apple menu > choose System Settings.

Step 2. Choose General in the sidebar and then click Time Machine.

Step 3. You will sell all backup drives, select the hard drive you want to exclude and click “-”. 

Step 4. It will pop up a window, click Forget Destination to remove the hard drive from Time Machine (It only removes the backup drive, won’t format the drive).

For macOS Monterey or earlier:

Step 1. Click Apple menu, choose System Preferences.

Step 2. Go to the Time Machine settings panel in the System Preferences section of the menu.

Step 3. Third, select "Add or Delete Backup Disk." from the drop-down menu.

Step 4. Fourth, you may check out the available backup disks. To remove a disk, select it and then select "Remove Disk."

Step 5. Fifth, when prompted, select "Stop Using This Disk" to make the desired changes permanent.

As the deleted drive is no longer in the Time Machine backup chain, it will no longer initiate a backup when connected to the Mac. Time Machine backups initiated manually will likewise no longer use the disconnected drive.

Removing a Time Machine drive does not lose data; backups will no longer be created on the removed drive. It does not disable Time Machine either.

The Time Machine backup files can be deleted manually, or the drive can be formatted with a Mac and emptied of all data if desired. If you anticipate future use or want to refer to the files, there's no harm in leaving them where they are.

How to format or wipe old Time Machine backup drive?

If you will sell, donate, dispose of or recycling an old Time Machine backup drive, you may format it or wipe it.

👉 #1 Format Time Machine Backup Drive Using Disk Utility:

Step 1. Go to Launchpad and open Disk Utility.

Step 2. Select the Time Machine backup drive, click Erase.

Step 3. Give it a new name and select a file system, click Erase again. When it is completed, click on Done button.

👉 #2 Wipe Time Machine Backup Drive with Eraser:

If you will sell or donate your hard drive, you’d better permanently wipe all data from it to prevent potential data recovery. Donemax Data Eraser for Mac can help you easily and permanently erase data from local hard drive or external device on Mac.

Step 1. Download and install Donemax Data Eraser for Mac. Open it.

Step 2. Choose data erasure mode - Erase hard drive. It will wipe all data from the selected hard drive.

Step 3. Select the Time Machine backup drive and click on Erase Now button. It will securely and permanently erase all data from the drive.

Note: Please note that once your data is erased by Donemax Data Eraser for Mac, the data is lost forever, can’t be recovered by any data recovery method.

FAQs about deleting Time Machine Backup Drive

Conclusion:

Time Machine is Apple's automated backup solution that may be set and forgotten. Time Machine creates backup copies of your files every hour. It saves previous versions of documents and deletes them so that they, or an entire computer, can be restored to a previous state at any time. When the backup drive is full, the oldest backups are deleted mechanically.

Since Time Machine is so reliable, it is often overlooked. In contrast, you will value these cutting-edge methods that put you in charge of the behind-the-scenes process if you ever have to replace computers or hard drives.