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MacBook Pro will not install update 10.15.6

My MacBook pro version10.15.5 will not install software update macOS Catalina 10.15.6. This is the first software update I haven't been able to install. Why am I having this problem, and what can I do to solve it? I appreciate anyone's input. Thanks.

Posted on Sep 20, 2020 5:38 AM

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3 replies

Sep 20, 2020 3:28 PM in response to Agiftdsbm

Download and try applying the  macOS Catalina 10.15.5 Combo Update. If that fails then boot into Safe Mode (How to use safe mode on your Mac - Apple Support) by booting with the Shift key held down and and try applying the combo updater from there.

NOTE: Safe Mode boot can take up to 10 minutes as it's doing some system cache cleaning, volume verifying and directory repairing. 


MacBook Pro will not install update 10.15.6

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