"The folder where your backup data is stored changes depending on the computer's operating system. Since iTunes only keeps one backup per device, you should ensure the backup folder is included in your periodic data backup routine. iTunes places the backup files in the following places: Mac: ~/Library/Application Support/MobileSync/Backup/ Windows XP: \Documents and Settings\(username)\Application Data\Apple Computer\MobileSync\Backup\ Windows Vista and Windows 7: \Users\(username)\AppData\Roaming\Apple Computer\MobileSync\Backup\ Note: If you do not see the AppData or Application Data folders, you may need to show hidden files (Windows XP,  Windows Vista and Windows 7)." - ɐ ɯıʞ sıɹɥɔ