I recovered a Pakard Bell running Windows 98 to make music creation. But I can not install my software (Cubase SX3) probably because it's 98. Is it possible to install Windows XP ? Since a license costs a price, can we do without? Is it absolutely necessary to have the CDs provided with the license? Or can we recover from a another computer that already had Windows XP on it (I have 2 more in this case)? Any help on this will be great.