I don't want to dual boot, just format c: and install Ubuntu

[singist]

I know that I should know the easy way to do this but .....


I have installed Vista on c: and want rid of the piece of ****! ..... in it's place I would like to try for Linux for the first time.
I have the linux disc but want to know what option to choose when it gets to the partition bit? I want to keep the c: partition but wipe the Vista and replace with Ubuntu.

All the guides I come across are about dual booting which is NOT what I want so your kind advice would be gratefully received.

 

[singist]

All my data is on D: which is the other partition of the hard drive ie C: and D: on the same physical drive; I have Vista on C: and the stuff I need to save on D:

So when GaemeUK says choose guided/ entire disk will it format and install on C: but still leave my D: partition with all my data on?

 

[singist]

Managed to do what I wanted using Gparted as outline above; thanks for the replies, I ll probably be pestering you guys about this Linux thing in the near future.