Well, Broni posted while I was typing, but as said, what Service Pack level was the original installation? For Vista, Service Pack 1 and 2 are the only packaged form of updates. Each contains all the updates to the respective service pack's release date. I've just done the procedure myself of updating a Vista installation through SP1 and SP2 from a flash drive, fortunately I already had them "on file" from another job last year. Both Service Packs are required if it is an original release Vista. The Service Packs are large, SP1 is 445MB, SP2 is 357MB. The updates subsequent to SP2 are only obtainable individually, and best sourced through Windows Update.
Edited by Platypus, 05 March 2011 - 04:43 PM.