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Will Time Machine delete additional files on disk?

Can I backup my mac on a disk using Time Machine, without deleting the other files that are already on the disk or can my Time Machine-disk solely be used for Time Machine-backups?

MacBook Air 13″, macOS 10.12

Posted on Apr 4, 2022 10:37 AM

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Question marked as Top-ranking reply

Posted on Apr 5, 2022 2:20 AM

All the Eggs in one Basket and the Basket Fails - Scrambled Eggs.


Anything that can not be replaced should really be protected as computer and External Drive can and do fail.


Do I have a Rescue Plan In-Place. This comprises having 3 Backups using 2 methods and 1 Off Site incase of Theft, Loss or Natural Disasters. A Time Machine Backup  is very useful and can be used to Revert to Previous Working macOS.


For additional purposes - two Tested Bootable Clones each to separate external drives. This is insurance incase the upgrades goes sideways. At least one Tested Clone and / or Time Machine Backup should be Off - Site

2 replies
Question marked as Top-ranking reply

Apr 5, 2022 2:20 AM in response to MadsValdemar

All the Eggs in one Basket and the Basket Fails - Scrambled Eggs.


Anything that can not be replaced should really be protected as computer and External Drive can and do fail.


Do I have a Rescue Plan In-Place. This comprises having 3 Backups using 2 methods and 1 Off Site incase of Theft, Loss or Natural Disasters. A Time Machine Backup  is very useful and can be used to Revert to Previous Working macOS.


For additional purposes - two Tested Bootable Clones each to separate external drives. This is insurance incase the upgrades goes sideways. At least one Tested Clone and / or Time Machine Backup should be Off - Site

Will Time Machine delete additional files on disk?

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