For best results see my wiki A Clean install of Windows 7. Note that Windows 7 isn't officially supported on this system. Hence Dell don't provide any drivers for the system. However likely Windows 7 will have all the necessary drivers inbuilt for this system. You should run the Windows 7 Upgrade Advisor before installing Windows 7.
Hi  I had bought a Windows 7 package some time ago for my Daughters Dell Latitude D410 , So I thought yesterday I will put it on , not realising that there is no cd/dvd drive on it . This may be a stupid Question , but  how can I get it onto Her Dell , I have opened the package so I can not return it .  thank you
Installing Windows 7 on Latitude D410