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Catalina 10.15.4 update looping and not applying

I get the message Catalina 10.15.4 update is available for my mac, I click update now, its requires a restart, I restart and after restarting, I'm back where I started - I get the message Catalina 10.15.4 update is available for my mac. It just loops back - no update applied. I've checked about this mac - still on 10.15.3. Anybody else experienced this?

MacBook Pro 13", macOS 10.15

Posted on Mar 28, 2020 11:16 AM

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Question marked as Top-ranking reply

Posted on Mar 31, 2020 11:07 AM

Try the following:


1 - download the macOS Catalina 10.15.4 Combo Update 

2 - install the update with it.


4 replies

Mar 28, 2020 7:09 PM in response to SayersCommon

I also am having this issue. I saw another post mentioning needing at least 20GB of free space, and that not having enough space can cause this. I have over 150GB free, however, so I don't think this is the case for me.


One thing worth noting for me is that I have the OS installed on an internal RAID 0 on a mid-2012 MacBook Pro, which is probably not very common given the work required to set that up to run with Catalina.

Catalina 10.15.4 update looping and not applying

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