About iTunes for Windows background processes

iTunes for Windows installs some processes that run in the background when the software is open. Find out more about what each process does.

Process What it does
AppleMobileBackup.exe Backs up the data on your iPhone or iPod touch
AppleMobileDeviceHelper.exe Listens for commands to help iTunes communicate with devices
AppleMobileDeviceService.exe or AppleMobileDeviceProcess.exe Allows iTunes to recognise iPhone and iPod touch
AppleMobileSync.exe Synchronises iPhone or iPod touch data with your computer
distnoted.exe Allows iTunes to sync with iPhone and iPod touch
iPodService.exe Allows iTunes to access devices
iTunesHelper.exe Listens for commands to help iTunes communicate with devices (such as iPod)
MDCrashReportTool.exe Extracts log reports from the device and submits them to Apple (if selected)
mDNSResponder.exe This lets iTunes discover services on the local network (music sharing, Apple TV, AirTunes). It's also known as Bonjour for Windows.
SyncServer.exe Coordinates the synchronisation processes
Process that depends on Sync configuration What it does
com.apple.IE.client.exe Syncs the device with Internet Explorer
com.apple.Outlook.client.exe Syncs the device with Outlook
com.apple.Safari.client.exe Syncs the device with Safari
com.apple.WindowsContacts.client.exe Syncs the device with Windows Address Book/Windows Contacts
com.apple.WindowsMail.client.exe Syncs with Windows Mail

Depending on your setup, some of these background processes may not appear. iTunes can start other background processes to perform various tasks, such as syncing and diagnostics. New functions may be added to these background processes in the future. You shouldn't disable these processes even when iTunes isn't open on the computer.

Learn more

To make sure your Windows computer has access to Apple services, find out more about using Apple products on enterprise networks and TCP and UDP ports used by Apple software products.

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