I am completely new to Ubuntu but am looking forward to giving it a shot.
I downloaded 12.04 64-bit and burned it to a DVD. Booted my laptop from the DVD and tried to install it alongside Windows 7 64-bit, but it says that my laptop has multiple OS and it only gives me the option to either erase the disk and install or the advanced install.
As far as I know the only OS I have is Windows 7 64-bit. Has this happened to anyone else? Is there a way to fix this?