Apple Mobile Device Service Failed to Start: Fixes

If you see “Apple Mobile Device Service failed to start” on Windows, it usually means the background service that lets iTunes, Finder, or other Apple software talk to your iPhone, iPad, or iPod is stopped, disabled, or crashing. The fix is to check the service’s status, set it to start automatically, and restart it; if it still fails, reinstalling the Apple drivers or the software that owns the service usually resolves it.

What Is the Apple Mobile Device Service?

The Apple Mobile Device Service (AMDS) is a Windows background process installed with iTunes, Apple Devices, or the Apple Mobile Device Support package. It is the bridge between Windows and Apple’s mobile hardware. When you plug in an iPhone or iPad, Windows uses this service to recognize the device, install the correct driver, and allow syncing, backup, and file transfers through iTunes or the newer Apple Devices app.

On modern Windows versions, the service appears in the Services console as Apple Mobile Device Service with the internal name Apple Mobile Device Service and runs from C:\Program Files\Common Files\Apple\Mobile Device Support\AppleMobileDeviceService.exe. If the service is not running, Windows may show an error like “The Apple Mobile Device Service is not started” or “This iPhone could not be connected because the Apple Mobile Device Service is not running.”

Why Does the Service Fail to Start?

The service can fail for several common reasons. The most frequent is that the service is set to Manual or Disabled and simply never starts when you connect your device. Another common cause is a corrupted driver or a leftover conflict after a Windows update or an iTunes update. Sometimes third-party security software or “optimizer” tools disable the service to speed up startup, and sometimes the service’s executable file is missing or damaged because an Apple software installation was incomplete.

Less common but possible causes include:

Another Apple-related service (like Apple Mobile Device Management or Bonjour) is also stopped and the AMDS depends on it.
You have both the old iTunes and the new Apple Devices app installed, and they are fighting over the same driver files.
Windows itself is missing a required update or the USB driver is outdated.

How to Fix It: Step-by-Step

Follow these steps in order. Stop when the problem is resolved.

Open the Services console. Press Win + R, type services.msc, and press Enter.
Find “Apple Mobile Device Service” in the list (it is usually under the Apple, Inc. publisher). Right-click it and choose Properties.
Set the startup type to Automatic. In the General tab, change “Startup type” to Automatic (or Automatic (Delayed Start) if you want to be safe). Click Apply.
Start the service. Click the Start button. If it starts without an error, close the console and reconnect your iPhone or iPad.
If it fails, check the error code. Windows may show a message like “Error 1053: The service did not respond to the start or control request in a timely fashion.” That usually means the executable is corrupted.
Repair or reinstall Apple software. Go to Settings > Apps > Installed apps (or Control Panel > Programs and Features), find Apple Mobile Device Support and iTunes (or Apple Devices), and choose Repair. If repair is not available, uninstall all Apple software (iTunes, Apple Devices, Apple Software Update, Apple Mobile Device Support, Bonjour, and Apple Application Support), then restart and reinstall the latest version of iTunes or Apple Devices from Apple’s website.
Reinstall the Apple USB driver. If the service starts but your device still isn’t recognized, open Device Manager, expand Universal Serial Bus controllers, right-click Apple Mobile Device USB Driver (or “Apple iPhone”), and choose Uninstall device. Then unplug and replug your iPhone. Windows will reinstall the driver automatically.

If the service still won’t start after reinstalling, try a clean boot to rule out third-party software interference: press Win + R, type msconfig, go to the Services tab, check Hide all Microsoft services, click Disable all, then restart and try starting the Apple service manually.

Common Misconceptions

Many people think the error means their iPhone is broken. It is almost always a Windows-side issue. Another misconception is that you need to install iTunes to fix it. On Windows 10 and 11, you can use the Apple Devices app from the Microsoft Store, which installs its own copy of the Mobile Device Support framework. If you have both, uninstall the older one to avoid conflicts.

Some guides tell you to delete the AppleMobileDeviceService.exe file or change its permissions. That is rarely the fix and can make things worse. Stick to repairing or reinstalling through the official installer.

How to Prevent It From Happening Again

Once you get the service running, a few habits reduce the chance of it failing again:

Keep Windows and your Apple software updated.
Don’t use third-party “service optimizer” tools that disable background services.
Always eject your iPhone or iPad properly before unplugging it.
If you use a USB hub, connect the device directly to a USB port on the computer.

When to Seek Further Help

If you’ve tried all the steps above and the service still fails, the problem may be a deeper Windows issue, such as corrupted system files or a failing USB controller. Run sfc /scannow and DISM /Online /Cleanup-Image /RestoreHealth from an elevated Command Prompt to repair system files. If that doesn’t help, contact Apple Support or Microsoft Support. They can check for specific error codes and provide a targeted solution.

Frequently Asked Questions

Why does the Apple Mobile Device Service keep stopping?

It usually stops because it is set to Manual and no program triggered it, or because a Windows update changed its startup type. Reinstalling Apple Mobile Device Support usually resets the service to Automatic and fixes the problem.

Can I use my iPhone without this service?

No. Without the service, Windows cannot communicate with your iPhone for syncing, backup, or file transfer. You can still charge the phone, but the computer won’t recognize it as a device.

Do I need iTunes to fix this error?

No. On Windows 10 and 11, you can install the Apple Devices app from the Microsoft Store, which includes the required Mobile Device Support. If you already have iTunes, repairing it also works.

What if the service starts but my iPhone still isn’t recognized?

Uninstall the Apple Mobile Device USB Driver in Device Manager, then reconnect your iPhone. If that doesn’t work, try a different USB cable or port, and make sure your iPhone is unlocked and trusts the computer.

Is it safe to set the service to Automatic?

Yes. The service only runs when you connect an Apple device or open Apple software. It uses very little memory when idle, and setting it to Automatic ensures it’s ready when you need it.

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