I download a Windows XP 64 Bit Edition from MS site today but I don't know how to install it properly.The problems are :To burn the ISO file to a CD, you must have a CD-RW drive (CD burner) with appropriate supporting software. If you do not have a CD burner, there are third-party software products available on the Internet that will allow you to create a virtual CD drive. So first I use a virtual CD drive to install it but when I click setup.exe it reminds me :This version of Windows must be installed by booting off of the CD.Please reboot your computer with the CD in the drive. Then I burn it to a CD and insert the CD then restart my computer, but CD couldn't be AutoRun. My PC is :Asus K8v-x,A-data ddr 400 512m,AMD Athlon 64 2800+ and C is NTFS. Who can tell me what's the matter? Do I need to add something to the XP 64 files or ...?