The benefit of replace is it automatically sets up the partitioning scheme.
The disadvantage is that it sets it up in a way that might be troublesome later on.
The installer creates a main partition, usually sda1, then makes an extended partition, usually sda2, then creates a logical partition on sda5. So if later on you need a primary partition (which are only the first four partitions) you need to jump through a few hoops to set it up.
Simply because you can make sure that it doesn't replace it with a wholly new one.
To use something else, find the partition you want to use and highlight it, then click "Change /or Edit".
Select the mount point (usually /, but if using separate partitions for /home, you can as well).
And then set the filesystem type. (It will say do not use partition, simply click on it and ,strangely, the normal default filesystem type ext4, is way up at the top of the list.)
If you have swap, you can leave it be.
The installer will find it, without you needing to do anything about it.
It would be easier to answer that if you tell us your computer specs.
CD Drive(Supports Big and Small Disks.)(No DVD-ROM.)
Floppy Disk Area.
1 Free Space for ADDITIONAL Item(s)
Graphics Card: PROBABLY Nvidia /OR A VERY OLD AMD.
NOTICE ME SENPAI
Then be absolutely certain NOT to select auto-login when you enter your username and password.
After the installation completes and you boot the new OS the first time, once you get to the login screen you can press Ctrl + Alt + F1 which will open a terminal and type:
Press enter and follow the prompts. When the package installation is complete you can just:Code:sudo apt-get install gnome-panel
And then when the login screen appears again just click on the GNOME foot next to your username and select GNOME FLashback (Metacity) as the desired session.Code:sudo reboot
Or you could install Lubuntu or Xubuntu instead - it's all a matter of choice.