update 11.1.4 won't install on my laptop. Now I can't get iTunes to work at all.

What worked for me was uninstalling all the programs mentioned in the previous post, but also going into the programs folder and deleting their respective folders...that included the apple folder located within the "common" folder. After I rebooted and tried to install iTunes every thing went fine. My library was also still intact.

AH ... that might explain why my attempts were also unsuccessful - I'm running Win7 64 bit.

i had zero problems in following TT2 instructions on my win7 64

took 10 minutes with the reboot.

I also used cc cleaner/registry cleaner once I was done.

Thanks this worked for me! The mobile device support wouldn't uninstall, but went away later. So glad to have found this post, saved me much frustration and time!

You're welcome. 🙂

Those still having trouble should now refer to:

Troubleshooting issues with iTunes for Windows updates

tt2

TT2 -- Thanks for posting the solution to what I assume is an issue with Aplle's iTunes update. The solution worked fine.

I did have to go to the next step and delete selected files & folders. For anyone else who needs to do that, if one of the subfolders in "C:/program files (x86)/common files/Apple" can't be deleted, it may be because an application file in that folder is open. After following the instructions TT2 posted and after deleting what I could in Step 2, I went to Task Manager and looked at both "Processes" and "Services" and closed a couple of Apple-related applets that were stil running. Then was able to delete the remaining subfolder in C:/.../common files/Apple. Then I rebooted and reinstalled the latest version of iTunes.

The newest iTunes won't work unless iTunes and supporting applications are completely uninstalled first.

After you have uninstalled everything Apple tells you to (http://support.apple.com/kb/HT1923) using the uninstall feature in the Control Panel, these are the folders you need to manually delete the contents of:

C:\Program Files\Common Files\Apple\Mobile Device Support

C:\Program Files (x86)\Common Files\Apple\Mobile Device Support (if it exists)

You have to delete the contents of the Mobile Device Support folders before you can delete the Mobile Device Support folders or you will get an error message.

If you don't have the Mobile Device Support folder in either location, reboot and try to install the software. This has worked for lots of people so far. I hope it works for you, too.

The newest iTunes won't work unless iTunes and supporting applications are completely uninstalled first.

After you have uninstalled everything Apple tells you to (http://support.apple.com/kb/HT1923) using the uninstall feature in the Control Panel, these are the folders you need to manually delete the contents of:

C:\Program Files\Common Files\Apple\Mobile Device Support

C:\Program Files (x86)\Common Files\Apple\Mobile Device Support (if it exists)

You have to delete the contents of the Mobile Device Support folders before you can delete the Mobile Device Support folders or you will get an error message.

If you don't have the Mobile Device Support folder in either location, reboot and try to install the software. This has worked for lots of people so far. I hope it works for you, too.

I'm in the step of uninstalling the Apple Software Update. The thing is I can't find it in the Program and Features which is extremely annoying. I've tried looking whether anybody got this problem but still haven't found it. I would appreciate any help from here. Thanks

It is possible it didn't install correctly when the initial installation went wrong. If you can't find a component to remove then move on to the next step. See Troubleshooting issues with iTunes for Windows updates for details.

tt2

tt2,

I have been following this post as I have the same issue. I have tried multiple times to get a clean install and have not been successful. I do get itunes to install, but it does not install the modil device support program. I have deleted the programs in order, cleaned out the file folders, deleted temp. I am missing something and am open to suggestions. I even tried a system restore to an earlier date. Downloaded itunes with google and IE. I hope I am missing something that is obvious, but I haven't seeen it yet. Appreciate any suggestions.

Thanks

OK, let's try digging a litle deeper. What version of Windows? Could you please go into Control Panel > Programs and Features and tell me which of these items are shown as installed:

Apple Application Support

Apple Mobile Device Support

Apple Software Update

Bonjour

iCloud

iTunes

tt2

I have widows 7 64 pro.

I have all but Mobile Device Support and iCloud.

Thanks, See b noir's post Standalone Apple Application Support install. Unpack the setup file and try to install AppleMobileDeviceSupport64. Even if it fails it might provide useful feedback.

I'm not sure about the 64-bit installer, but the 32-bit one includes a Vista-only iCloud component. You may need to go to iCloud Control Panel to redownload that if you use it.

tt2