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External disk cannot be activated: error 49223

Since Dec. 10, 2021 I'm using a Macbook Pro M1 (2021) with OS Monterey. MAC could read but not write or change anything on external disks formatted as NTFS.


Today I tried to install a program iBoysoft NTFS for MAC. As installation was partly completed, the program asked for permission to install lots of system extensions which required extra permission to do so. Having the feeling this was not a good idea I stopped installing the program and put it in the garbage bag.


Since then my external disks formatted as NTFS could not be shown or read by the finder. The disk management program showed the disk, however as deactivated. Trying to activate it failed by stating "disk management.disenter error 49223".


My APFS formatted data backup disk for Time Machine is shown in the finder as before.


I think the NTFS for MAC software did some changes in the system which resulted in the problem described above and was not rechanged when deinstalling the software.


Could someone tell me how to solve this problem.


Thank you.


Horst912

MacBook Pro 16″, macOS 12.1

Posted on Dec 23, 2021 12:52 PM

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6 replies

Dec 23, 2021 1:07 PM in response to horst912

My experience with those type apps are they are at best hit or miss. Unless you have an urgent need for otherwise, you'll be far better off dedicating a TM drive to your Mac and format it in the Apple required format. For Monterey, TM uses APFS (Case-sensitive). I think you can start with APFS, but TM will make it the case sensitive variety.

External disk cannot be activated: error 49223

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