A clean install is different than an upgrade. Upgrades can only be performed from a specific version of Windows to another. For example Vista home basic 32 bit can only be upgraded to a 32 bit version of Windows 7. If you want to upgrade to a 64 version of Windows you would have to complete a clean install. Operating systems also have minimum system requirements of memory, free space on a volume, processor speed and video. This should be considered when choosing an operating system for purchase.
Installing a new operating system on a system requires that the drive be formatted properly. NTFS (New Technology File System) is the standard for formatting volumes using Windows operating systems that are currently supported by Microsoft. Configure your BIOS options to boot from the media that contains the install software for the operating system. Compact disk drive options include digital video disk drives. Systems