How do you reformat a hard drive with Windows 2000?

To reformat a hard drive with Windows 2000, first, back up any important data, as formatting will erase everything on the drive. Insert the Windows 2000 installation CD and restart your computer, booting from the CD. Once the setup begins, select the option to install Windows, then choose the hard drive you want to format, and select the format option (usually NTFS or FAT32). Follow the prompts to complete the formatting process and install Windows.