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Assignment of Right to Write in System Applications in macOS Catalina

How do I assign to myself (administrator) the right to write in otherwise 'read only' system applications in macOS Catalina 10.15.7? I wanted to remove/delete some of the system applications that don't have utility to me like Stocks and few others. When I try to add myself, a pop-up says 'the operation can not be completed because you don't have the necessary permission!?

MacBook Pro 13″, macOS 10.15

Posted on Dec 10, 2020 5:39 AM

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Posted on Dec 10, 2020 5:07 PM

otich23 wrote:

Thanks for replying Viking OSX! I don't plan to tamper with the applications files per se and cause all sorts of problem to my mac, then come here again ask for solutions. I was asking apple discussions how I would be able to give myself 'read and write' rights to these files so I can remove needless, undesired, and extraneous files that have nothing to do with how my mac performs!

You can't give yourself Read/Write permissions on a Read-only file system.

You can boot from another startup source, mount the drive, and modify it that way. One option is Terminal in Recovery.

6 replies
Question marked as Top-ranking reply

Dec 10, 2020 5:07 PM in response to otich23

otich23 wrote:

Thanks for replying Viking OSX! I don't plan to tamper with the applications files per se and cause all sorts of problem to my mac, then come here again ask for solutions. I was asking apple discussions how I would be able to give myself 'read and write' rights to these files so I can remove needless, undesired, and extraneous files that have nothing to do with how my mac performs!

You can't give yourself Read/Write permissions on a Read-only file system.

You can boot from another startup source, mount the drive, and modify it that way. One option is Terminal in Recovery.

Dec 10, 2020 4:58 PM in response to VikingOSX

Thanks for replying Viking OSX! I don't plan to tamper with the applications files per se and cause all sorts of problem to my mac, then come here again ask for solutions. I was asking apple discussions how I would be able to give myself 'read and write' rights to these files so I can remove needless, undesired, and extraneous files that have nothing to do with how my mac performs!

Dec 11, 2020 4:45 AM in response to Barney-15E

"You can boot from another startup source, mount the drive, and modify it that way. One option is Terminal in Recovery."


The above-quoted lead was very helpful. I started with it and supplemented by some information on Apple Developer Forums, I was able to successfully remove/delete NUE (needless, undesired, and extraneous) system application files. Thank you!


But I found more, it is possible to assign read and write rights by this: sudo chmod - R 775 /your\ folder\


However, I did not try it, as my purpose for wanting to be assigned read and write rights was simply to remove NUE files. I was able to remove them directly without having to use it or go through it.


Assignment of Right to Write in System Applications in macOS Catalina

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