I had a quick read through this site -
http://michaelstevenstech.com
While it was all very interesting, I didn't spot any advice on
zero-filling a hard disk to get rid of that "once in a blue moon"
wonky XP format / installation that went wrong somewhere, leaving
errors that simply no subsequent XP
format/install/reinstall or repair can solve. A few months ago I
experienced a "bad" XP install, and the only thing that cleared the
problem was downloading and running the fixed-disk maunfacturers
zero-fill utility.
XP then went in without a single problem. ...that's an old one - I
found
myself using ....."fixed-disk"

...mumble...mumble...."must stop
giving away my age".....