delete the backups time machine (all) on an external HD is from another machine

I have an external hard drive with backup TM to a second computer I want to free up space on deleting all backup sets. I understand that simply by moving the folder to the trash and empty it is not the recommended method. So, should I enter TM with the drive connected, navigate to the drive that has the backup sets, and right click on the folder that contains these and click on 'delete all backups? They take about 500 GB. No idea how long it will take to remove them? (I tried this method a moment ago, the computer has become impossible to use, and finally I was able to cancel the process. "If it takes hours I'll try tonight.)

Thank you very much.

If backups TM are the only items on the disk, you can just reformat.

Do you need instructions?

Tags: Mac OS & System Software

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