If you want only Linux to be intalled in your system with Windows wiped out, follow the step indicated by ### and skip the first 1st step.
1]you can install Linux on any of your Windows drives.It's easy to install in the last logical drive you have or you can also use Free spcae if you have some.
Now, you have to make two partitions out of this last logical drive of windows or free space.
One for Swap and another for Root (/).
So, if you are using WinXP, you have the Disk Management Tool in Control Panel>Administrative Options.Using this, you delete the last logical Windows drive.(If you have Free Space, skip the deleting step)
Then,you split this newly formed Free Space into two parts, first one having a size equal to double that of your RAM (this is for Swap Space) and the second one will have remaining space(this will have larger space and it's for Root).Now Save and Exit and Restart to Windows.
If you are not using XP, then download/install utilites such as Disk Director Demo,Ranish Partiton Manager Free, Partition Magic and perform the same operations as above using any one of these softwares.
2]First go to BIOS (generally by pressing Delete key while the PC is switched ON), then choose your First Boot Device as CD Drive, the First Boot Device option should be under Boot section in new computers.
3]Put the Ubuntu CD in your CD Drive and wait for the Splash screen and press Enter to Boot.
Then, Select the Language, Country and all those things and wait for some time while Setup does it's duty.
4]Now, when you come to the Partitioning part, it asks to "erase and automatically partition entire disk", dont select this option, if you have some data in Windows Drives.So choose "Manual Partitioning".
Now, you will be seeing Partition Information of your Hard Disk.Here you select the small sized partition which was created in Windows (which is having twice the size of your RAM), and assign it as "Swap" using the options provided there.
Similarly, you select the partition you created in windows, and assign it "/ " (stands for Root) using the options.
###If you want the whole Hard disk to be occupied by Linux then select the "erase and automatically partition entire disk" option and continue. (This step is done instead of "Manual Partition")
5]After this choose "Finish" and continue with the installation.
Then comes the Boot Loader installtion.Here choose to install Boot Loader (GRUB) in Master Boot Record (MBR).
After this, installtion is almost over, Then follow the instructions to boot into Linux.
whoa...whew.....
