You need to boot from the CD and start setup. It will then give you the
choice to delete - recreate then format the partitions before installing.

Make sure you have the necessary drivers to get you on the Internet again so
if you need to download drivers you can.

hth
DDS W 2k MVP MCSE

"hasnain mir mohammed" <hasnainmirmohammed@discussions.microsoft.com> wrote
in message news:6B585E73-AB5B-44BC-93E1-791E8DBB325E@microsoft.com...
> i have a dell dimension 1100, iam trying to install windows xp home for
> the
> first time.
> I am already running windows xp home.
> I want to :-
> 1) Format my hard drive clean and
> 2) Re install windows xp from my dell operating system cd.
>
> I inserted the cd
> and was going well ..but til
> it was asking me which partition to install the operating system in.
> i click on c: (c drive) and it said that this partition already has a
> operating system and if i press enter then it will continue.
> I wanted to know if it is safe to go ahead with that.
> If there is anything else then please tell me because iam having severe
> problems with my computer .
> Please reply
> asap
> cheers