Where does iTunes save iOS updates? When I choose to install a new version of iOS on my device via iTunes, the installation file is huge (e.g. 750 MB). Where does iTunes save this file, and does it get deleted after the installation is done?
On Windows XP
Documents and Settings\&lt;User&gt;\Application Data\Apple Computer\iTunes\iPhone Software Updates

On Windows Vista/Windows 7
Users\&lt;User&gt;\AppData\Roaming\Apple Computer\iTunes\iPhone Software Updates

On Mac
~/Library/iTunes/iPhone Software Updates

I believe that the updates do not delete after they are installed.

Via this iPhone FAQ article.