howto remove fedora?

[Bruno Wolff III]

On Fri, Feb 15, 2008 at 12:41:07 +0200,
  Riku Seppälä <riku.seppala at kymp.net> wrote:
> Sorry I know this has been asked several times before but, I need easy 
> answer fast.
> I have to send my laptop to repairs and I really don't want to hear any 
> hints from them that the hardware is broken because of fedora.
> So I'm going to remove fedora before I send it to repair. What is the 
> easiest way?

If you don't want any OS on your disks you can boot with the recovery CD
and run a destructive badblocks test.
More likely they are going to expect some version of Windows on the
laptop, if it came with one. In that case you may have a restore disk or
a hidden partition that you can use to put it back.
I am not sure what the easiest way to do things are if you are already
duel booting and want to change the master boot record to just boot Windows.