When a computer boots with the Windows 7 installation disc (or USB flash drive), the installation wizard presents three options, as shown in Figure 1:

NOTE: Before performing a repair installation, back up important files to a different physical location, such as a second hard drive, optical disc, or USB storage device.

For this section, select the Install now option. Three options are available:

If existing Windows installations are not found, the Upgrade option is disabled, as shown in Figure 2.

NOTE: Unless you perform a clean installation of Windows 7, the previous Windows folder is kept, along with the Documents and Settings and Program Files folders. During the Windows 7 installation, these folders are moved to a folder named Windows.old. You can copy files from the previous installation to the new installation if you need them.

During an installation, you must provide the following information:

Network Settings

When configuring initial network settings during installation, you are prompted to select one of the following current locations, as shown in Figure 3:

Depending on the current location of the computer and version of the OS, you are prompted to select a method for organizing computers and sharing resources on a network. The options are Homegroup, Workgroup, and Domain.

If Home network is selected, you are prompted to enter the name of a workgroup, with the option of configuring a homegroup. A workgroup provides a network structure that permits file and printer sharing. All computers in a workgroup must have the same workgroup name. A homegroup allows computers on the same network to automatically share files, such as music and pictures, as well as printers.

If Work network is selected, you can choose to enter the name of a domain or a workgroup. A computer on a domain is governed by a central administrator and must follow the rules and procedures set by the administrator. A domain, like a workgroup, provides users with the ability to share files and devices.