installing on macintosh hd

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DT2020 Author

Level 1

8 points

installing on macintosh hd

I want to ask the community whether what I experienced yesterday - a sudden 'installing on Macintosh HD' - is normal or malicious in anyway.

Yesterday while I was using my MacBook, the screen suddenly switched off and jumped to a 'installing' screen - 'installing on Macintosh HD' (see below the image). It took around 15-20 minutes to complete the whole process and after that, things seem to return to normal.

I wasn't sure what exactly was installed and why this happened. Is this standard process that can be expected? I was not even given any notice, choice or indication before this started, and I didn't have the setting on for automatic updates.

I am concerned whether my MacBook was compromised in anyway.

Can anyone advise or share their experiences please?

MacBook Air 13″, 10.15

Posted on Oct 1, 2020 4:38 AM

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Answer 1

Top-ranking reply

Old Toad

Level 10

210,615 points

Oct 1, 2020 2:19 PM in response to DT2020

Do you have this checkbox checked in your System/Software Update preference pane?

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Answer 2

DT2020 Author

Level 1

8 points

Oct 1, 2020 11:02 PM in response to Old Toad

Thank you everyone for your comments

To Old Toad -

This is the weird part. It was not ticked - i.e. at the same time I still have notifications asking me whether I want to update my iOS system to Catalina 10.15.7. So this 'installing on Macintosh' experience seems to be something different. I am concerned whether my MacBook has been compromised or hacked etc.

Any advice, thoughts or experience sharing are welcome.

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