Windows for dell desktop




1) Backup your Personal files.

2) Format your harddrive. Boot from Windows CD & follow directions.

or

3) Boot from Windows CD, format when asked.
 
Above steps are of course after you buy a copy of Windows 7. For Windows 13 you may need to wait a while. Windows 8 is in beta now. Windows 13 will probably be out in 15 years.

And check first to make sure all your hardware and software you use is compatible with Win 7.