If you have a netbook or a small laptop or "ultrabook" then most likely it wont have an optical drive... then if you need to reinstall Windows (or whatever) then the smart way to do it is to use a USB pen drive. To do this use:
WinToFlash to transfer your install CD/DVD to your USB pendrive (it also makes it bootable).
PLUS Virtual CloneDrive (Freeware) IF you have the Windows/Install CD/DVD stored as an ISO or IMG on your PC.
And before you know it... Bob's your uncle. Fanny's your aunt. And you're one confused but happy little camper.
