Giovanni, you can dual boot with Window and Linux. You'll need to download all 5 CD or the DVD iso. You will need to leave Windows parition active then boot with the CD/DVD, Fedora has the ability to create partition. Create a second primary parition and format it with ext3 (recommended). You can choose to create a swap partition also but you don't need it if you have alot of RAM. Swap partition should be about 1.5 or 2x of your RAM. When it ask to install LILO or whatever bootloader it uses go ahead and install it. Take note of the partition name else you might choose to install it in the wrong partition.