You need to physically destroy the hard disk OR overwrite every sector.
Symantec Enterprise products have a tool called GDISK which is great
or....download Revo Uninstaller (free product) which has a drive cleaning
tool under the "Tools" section.

"JayAr" wrote in message
...
Hi to all. After 11 years of using my WIN 98SE finally got me a new
computer. I want to either donate or just give away the old one.
Should I reformat the HD? If so, how's the best way to do it? (never
done it) TIA
J.R.