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iPhone - Stuck "Preparing to sync" when trying to sync with iTunes via USB cable

I've seen this be an issue for some for many versions of iPhones back (old threads), and from that I've been able to identify the culprit and a work-around to the problem (as Apple isn't fixing the underlying issue).


The problem is, when I plug in my iPhone (currently an 15 ) via USB cable to my computer running iTunes, iTunes sees the phone and starts with the "Preparing to sync..." message and then just sits there for a loooonngg time.


The issue appears to be the Apple program MDCrashReporter.exe which is found at the following location on an MS Windows PC (Windows 10 in my case):


C:\Program Files (x86)\Common Files\Apple\Mobile Device Support\MDCrashReportTool.exe


You can find it in the list of running processes when the sync is hanging.


You can unstick the sync by killing that process: Task Manager->Details->find it in the list->End Task


A more usefull solution is to disable it. What I did, that seems to work is:

Rename the executable: I renamed it to

C:\Program Files (x86)\Common Files\Apple\Mobile Device Support\MDCrashReportTool.exe-orig


So the extension now is .exe-orig (note: you must have admin rights to the machine to rename the file)


That keeps it from running and hanging up the sync process. Works great so far.


All I use iTunes for is to sync my work exchange calendar with my iPhone calendar - that's it. Now that I've disabled the ability for running MDCrashReporterTool, that sync takes a few seconds and done.


If Apple ever fixes its crash reporter tool then this won't be necessary. Or if Apple ever produces an application for managing and syncing the devices and ONLY that, maybe better still.


--

For completeness - the problem isn't the cable (its Apples own USB-C cable), its not the phone needing a reboot - it is bugs in iTunes and its support applications via-a-vis its drivers.

Posted on Nov 9, 2023 1:06 PM

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Question marked as Top-ranking reply

Posted on Dec 17, 2023 8:42 AM

For those using Mac, you don't need to fiddle with Terminal or have administrative rights. Even simpler work-around: just use Activity Monitor to Force-Quit the MDCrashReportTool process, as in thread 255344479.


PS: shutting down my Apple Watch indeed did not help, this seems unrelated as far as I can see on my end.

Similar questions

161 replies

Jan 3, 2024 7:40 PM in response to Minok

Thank you Minok.


Your suggestion above indeed help resolve the sync issue. Using an iPhone 14 ProMax with PC running on Windows 10. I use it to sync not only music and photos, but more importantly the contacts and calendar with Outlook on my PC and vice versa.


However, now it skips the backup process altogether at the start of the sync process when the back up setting is at automatic to my computer.


I just revert back to "MDCRashReportTool" to do a backup to the PC, and add the .exe-orig extension when i want to sync.

Jan 15, 2024 8:47 AM in response to Minok

Killing MDCrashReportTool.exe in Task Manager during "Preparing for Sync" in iTunes also worked for me. I'm running Windows 11 23H2, iTunes for Windows 12.13.1.3 and iOS 17.2.1 on iPhone 15 Pro Max.


To me it's ridiculous and pathetic that customers are confronted with an egregious bug like this. And, worse, they don't fix it. What does that tell you?

Jan 24, 2024 9:06 PM in response to TechAzn

Well how about that. It works.

and this confirms that the problem and solution resides in apples badly broken iTunes application (for windows at least) in that the mdcrashreporter application isn’t designed to run with the correct permissions ; maybe an installer problem.


good find.

now just remember you have to repeat this manual patch every time you play update iTunes on window.



Feb 4, 2024 12:22 PM in response to Lucia555

Windows Store iTunes ir direct form Apple? I'm trying to get my head around why these "fixes" work for some people and not others. At face value I have the same set up as you but although iTunes does now sync, the "preparing" phase ALWAYS takes around 5 minutes before it moves on.


Changing to Windows 7 Compatibility made no difference at all.


I'm syncing an iTunes library of around 49000 tracks - maybe that the issue with the speed of the "preparing" phase?

Jan 5, 2024 3:33 PM in response to LucertolaMc

LucertolaMc wrote:

I can't even find the MDCrashReporter.exe file on my PC nor is it on my task manager as running

Lucertola, you are using iTunes, right?


MDCrashReportTool can be found in your Task Manager after expanding the iTunes app.

Look at the post by IronMike778 (Dec 18, 12:57 PM) in the following thread:

https://discussions.apple.com/thread/255342772?sortBy=oldest_first&page=2


Good luck!

-R.

iPhone - Stuck "Preparing to sync" when trying to sync with iTunes via USB cable

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