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

I did it according the turingtest2. Everything worked as described, nothing lost, everything is absolutely the same, as before. Thank you very much, you save my music and my mental health too.

Do the Apple staff read the discussions? They should warn the W7 64 bit users or fix the problem.

Thank you so much, turingtest2, for this solution.

I spent several aggravating hours trying all kinds of things from all kinds of well-meaning individuals, including replacing registry keys, removing/replacing all Mobile Device Support files and drivers (copied from a working machine (fail #1) and downloaded from one of the well-meaning individuals (fail #2)), and installing previous versions.

Your solution is the ONLY one that worked!

Cindy

Glad you got it fixed.

tt2

Thank you. Struggled with 11.4.1 for 2 days with same issue. Your tips solved the problem.

You're welcome.

tt2

Thanks Turingtest 2

I cannot remove Apple Mobile Device Support but i still reinstall  Itunes and it worked  anyway  and i have no lost my music and my vidéo  on my Itunes and my Iphone

Thanks again

I spent the better part of the day dealing with this issue on 2 PCs after trying to update iTunes.  I finally fixed them by running a system restore and have both iTunes working again although I have gotten the message that 11.1.4 is available.  Of couse I haven't run the update again.  Being a person who likes to keep his software fully updated I wonder what I am missing if I don't install this update and just continue with what I have. (11.1.3.8)  Is there any pressing issue or great advance that comes with the new update?

I just experienced the same issue....couldn't delete Apple Mobile Device Support.  Restored back to last version and am back on.....will wait to see if there is a fix by Apple for this.

turingtest2 -

Thank you for your written help.

Removing all the items as listed by you, then reboot, reinstall worked for me.

All my music etc. was there - no problems.

Thanks again.

Thank you very much.  My annoyance has now subsided.  Still, Apple made life a pain for a lot of people who do  not visit the support community...and for those who do.  Anyway, thanks again.

Thanks Turingtest 2

I uninstalled/reinstalled according to your protocol and then reinstalled the latest version when I received the library error message.

I am up and running!

Thanks again!

Rosehill......I finally got it to work as well using the fabulous instructions from turingtest.......

But, very interesting.......I am also having issues with Outlook 2007.........taking forever to load and superslow, ......started immediately after this recent itunes nightmare. 

Can't be coincidence if both you and I are experiencing Outlook 2007 strangeness.  How it could be connected is beyond me, but would love to get it fixed.

Thanks in advance for any ideas on how to sort out this iTunes update collateral damage.

This worked for me.  Thank you turingtest2!

Might be nothing, but I've seen a couple of posts related to Outlook issues and the discontinued MobileMe service. If still have the MobileMe control panel then you should probably remove it. See HT2992: MobileMe: Uninstalling the MobileMe Control Panel for Windows for details.

tt2

Thank you!!!  I thought I was only one with this problem.  I should have come to Support Communities before I spent so many hours loading and reloading.  Was ready to throw ipod into local river and give up as a lost cause.  Will be more cautious next time I do upgrade and won't blindly follow the prompt that a reinstall will fix problem.