Re: What does "Reinstall macOS" do, exactly?

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