I just installed/burned ubuntu 13.04 on my usb stick.
I restarted my pc and from the boot menu selected my usb stick.
Now when you load ubuntu from a usb it gives you a welcome screen asking whether "to install" or "try ubuntu without installing" right?
It didn't give me that page, instead it directly asked for a username and password. How will I know the username and password when I am using it for the first time.
By the way I already have windows 7 and ubuntu 12.04 installed on my pc. Does that affect?