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From: T i m <eternal@spaced.me.uk>
Newsgroups: alt.computer.workshop,comp.sys.mac.system
Subject: Re: What does "Reinstall macOS" do, exactly?
Date: Fri, 23 Aug 2024 12:36:42 +0100
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On 23/08/2024 09:29, David Brooks wrote:

<snip>

> //I was recently having some problems with iTunes, and decided to
> reinstall macOS Sierra. I held Command+R on startup and clicked on
> "Reinstall macOS" without erasing the hard drive in Disk Utility. Once
> the reinstall was complete, I started back up and all of my files and
> programs were still there, along with my settings, desktop wallpaper,
> and everything else. (The iTunes problems were fixed.)//
> 
> What exactly does this "Reinstall" feature do, if it doesn't remove
> programs and change settings to default?//
> 
> Here are answers on-line:-
> https://apple.stackexchange.com/questions/276766/what-does-reinstall-macos-do-exactly
> 
> How would YOU have answered the OP's question?
> 
If you had any idea how an OS / filesystem / preferences work you could 
answer it for yourself.

If you owned a computer and were doing something like re-installing the 
OS for a specific reason then found an online forum and posted to it 
asking such a question, you would sound like a vegetarian asking if 
cauliflower is vegan.

So you have a computer, have reinstalled the OS and found it doesn't 
delete your personal files and are asking why it didn't also delete 
something you believe to be malware?

Cheers, T i m