I'm really excited to actually install Ubuntu on my computer but I would like a way that doesn't take up too much disk space and neither lets me have risks of mistakenly formatting / partitioning the system drive, and also with an easy to uninstall.
I found Wubi.
But the official Wubi Guide doesn't make it clear.
When this screen appears (the picture is from the Wubi Guide)
https://wiki.ubuntu.com/WubiGuide?action=AttachFile&do=get&target=wubi-123.png
if I choose C drive for installation drive like shown in the picture, does it format my C drive?
And I'm running Windows 7 Home Premium x64 English SP1 now, does it matter if I choose Japanese for language?