When I need to reformat a hard drive, or if I get a new computer, the first thing that needs to be done is to download all the backups. Depending on how old the installation media is, this can often amount to more than 500MB of backups per system.
Is it possible, on both Windows and OS X, to 'export' all the applied updates that a computer has and apply them to another computer? If not, is there some sort of work around to achieve something similar?