gotomsdos is right. My experience is to use an XP CD, then set the BIOS to boot from the CD. When it boots to the part where it says "from cd..." or something like that, press any key. Then press F6 to format the hard drive. After formatting is done, it will prompt to install XP. If you don't format, the system will automatically detect the capacity of the target disk to be installed. If the capacity is not enough, it will prompt to delete the partition, then press F6 to format, and then it's installation. At that time, you'll understand because it's in Chinese prompts. XP doesn't have DOS. So you can't enter it. If you want to have an interface like a bar in the XP system, then there's a program command in the XP start menu called "Command Prompt" (if you can't find it, you can type those words in the search and you'll find it). After opening it, it's like the MS-DOS interface of a bar. -- What I said may not be correct because I'm also very green, please excuse me.