I have Dell 17 studio laptop and bought at march 2009 . But now i lost the all CD Pack of operating system and software .
How to get another copy of those from dell ?
You cannot download those online from Dell, even with your service tag (but take a look around the support downloads). Try calling Dell Customer Service. It's probably the ONLY reason to actually buy a Dell in the first place. Amazing service... They'll no doubt send you a new one.