On 11/05/2017 13:55, nospam wrote:
In article , David B.
wrote:

Do you know what processes occur if/when one uses 'First Aid' (Disk
Utility)?

it's a wrapper on fsck.

I had no clue what you meant ...... but I then looked he-

http://www.bing.com/search?q=fsck&form=MOZESB&pc=MOZT

Can it REALLY fix things which are wrong?

depends what's wrong.

I was wondering if it could cure OS X if one is attacked by malware.

although apple improved fsck a *lot* over what existed before (it had
to, because fsck was mostly crap), fsck is nowhere near as good as
diskwarrior, which is amazing in how well it can fix file system
corruption.

I bought a copy of Diskwarrior from Ebay some years ago. Sadly, it
doesn't work on my iMac/version of OS X.

--
David B.