I just installed ubuntu inside windows 7, just like how i was taught. However it won't start up correctly. It gives me a bunch of colors as if the graphics card is messed up. But when I boot into windows everything still works fine.
If no one knows how to fix this then please give me instructions on how to unistall ubuntu so I can re-install something else.
Don't use wubi (I guess you used it because you said you installed ubuntu inside windows 7). Just write the iso on a usb stick and install it from there.
Download the ubunu iso. http://www.ubuntu.com/download/desktop
Mount it with powerISO.
Run the installer and install it to your flash drive, my memory is hazy but it will either give you the option to install it portably, or allow you to install it to a volume of your choice.
Oxy is right. Anything after ver 9 will boot portabley check out www.pendrivelinux.com. They go into extreme detail how to install whatever iso you want to usb or sdcard.