Unable to open iTunes...missing MediaToolbox.dll

Unable to open iTunes. Get the missing MediaToolbox.dll error message. Have reinstalled iTunes and Quicktime. Nothing worked. Any ideas?

Hey... I had the same problem! In one of the other forums, they suggested uninstalling Quicktime player and reinstalling it. The downloading from here
www.apple.com/support/downlods/quicktime72forwindows.html
and then launch iTunes... it worked for me just a few mins ago!
Good luck!

Similar Messages

Unable to open itunes after update

unable to open itunes after update

I had a user with the same issue after updates and I was able to resolve.
I copied QTMovieWin.dll from: C:\Program Files (x86)\Common Files\Apple\Apple Application Support
to: C:\Program Files (x86)\iTunes
I did so after uninstalling and re-installin, but I don't beleive that was necesssary. Thanks to user thurdy. This fix was from apple support for the error "iTunes stopped working". Figured I'd give a shot and it ended up working.
For reference the user was receiving the following errors exactly:
"the procedure entry point ?fastfree@***@@YAXPAX@Z could not be located in the dynamic link library JavaScriptCore.dll"
and
"iTunes was not installed correctly. Please reinstall iTunes. Error 7 (Windows error127)"

I run windows 7. Since updating itunes, I have been unable to open itunes. I have uninstalled and reinstalled, and have chosen to run a administrator. Itunes icon now displays a shield with yellow

I run windows 7. Have been unable to open itunes since updating last week. I have uninstalled itunes and reinstalled, and have checked run as administrator, but still can no open. I notice that there is now a shield with yellow and blue squares next to it, that i do not think were there before.

many thanks, Mary.
The ModName is ituneup.dll; the modver is 1.0.7.0.
Do you have the TuneUp plugin installed for your iTunes? If so, I think your copy is causing the issue here. Try the following document:
iTunes: Troubleshooting issues with third-party iTunes plug-ins
... does that help with the launch errors?

I upgraded my iPhone 5 to iOS7 and I am unable to open iTunes on my phone - the screen just never loads.

I installed iOS7 on my iPhone5 and now I am unable to open iTunes - the screen just stays blank.
I have checked date and time and wifi settings.
Not sure what else to do.
I do have iMatch active on my device and its working fine on my other iPohne with iOS7 installed.
Any help please!

Have you tried logging out of your account on your phone by tapping on your id in Settings > iTunes & App Store and then logging back in ? If it's still the same after that then try a soft-reset : press and hold both the sleep and home buttons for about 10 to 15 seconds (ignore the red slider), after which the Apple logo should appear - you won't lose any content, it's the equivalent of a reboot.

I am unable to open itunes on windows 7 64 bit computer - tried reinstalling it, tried older version, but nothing worked...pl help

Hi,
I am unable to open itunes on wndows 7 64 bit laptop....tried reinstalling it, tried older version (itunes 10.6) but nothing seems to work. please help.
Regards,
Biren

Here is a solution that worked for a user who also had a problem with iTunes Software Support. This thread was for a win32 version, but Maybe this is the problem for both of you?:
IT appears that AppleApplicationSupport.msi, is not opening and installing properly.
Download and SAVE iTunesSetup.exe, where you can find it.
Then:
1. Download and install WinRAR.
2. Right-click the iTunesSetup.exe icon and choose "Open with WinRAR".
3. Once the EXE is opened in WinRAR, double-click AppleApplicationSupport.msi and when the installer window is open choose "Repair".
4. Done! You can now run iTunes normally.
Here is a link to that fairly lengthy thread.. http://discussions.info.apple.com/thread.jspa?threadID=2151777&tstart=-1

HT1926 I keep getting the following message after attempting to download and install the latest update for iTunes: missing MSVCR80.dll. error 7 (windows error 126)

I keep getting the following message after attempting to download and install the latest update for iTunes: missing MSVCR80.dll. error 7 (windows error 126). Anyone else having this issue? How do I get iTunes back in working order?

Go to Control Panel > Add or Remove Programs (Win XP) or Programs and Features (later)
Remove all of these items in the following order:
iTunes
Apple Software Update
Apple Mobile Device Support (if this won't uninstall move on to the next item)
Bonjour
Apple Application Support
Reboot, download iTunes, then reinstall, either using an account with administrative rights, or right-clicking the downloaded installer and selecting Run as Administrator.
The uninstall and reinstall process will preserve your iTunes library and settings, but ideally you would back up the library and your other important personal documents and data on a regular basis. See this user tip for a suggested technique.
Please note:
Some users may need to follow all the steps in whichever of the following support documents applies to their system. These include some additional manual file and folder deletions not mentioned above.
HT1925: Removing and Reinstalling iTunes for Windows XP
HT1923: Removing and reinstalling iTunes for Windows Vista, Windows 7, or Windows 8
tt2

HT203175 "apple mobile device failed to start" "verify that you have sufficient privileges to start system services" came up on windows XP upgrade to 11.1.4 and since have been unable to open itunes - uninstalled and tried reinstall to no avail - what to

"apple mobile device failed to start" "verify that you have sufficient privileges to start system services" came up on windows XP upgrade to 11.1.4 and since have been unable to open itunes - uninstalled and tried reinstall to no avail - what to do ? Ken

I am having this same problem. I took Kappy advice on restarting the Apple Mobile Device Service, however that did not work. I got this message in a pop up window that came up immediately.
Windows could not start the Apple Mobil Device Service on local computer.
Error 1053 The service did not respond to the start or control request in a timely fashion.
I have already uninstalled itunes, all the related programs and I cannot reinstall, this Apple Mobil Device message stops the install.
Can anyone please help?

Unable to open Itunes in Vista - data execution prevention (DEP)

I'm unable to open itunes on my computer. I can install it but not open it. It says that the data execution prevention has stopped the running of the program. I have tried to change the settings of the data execution program, but it will not allow me to accept itunes - as it says that DEP has to be activated for itunes and cannot be deactivated. What do I do?

One temporary solution is to run itunes through XP rather than vista.
To do this go to the program icon (makes sure its not a shortcut, and the actual program icon, you can find this in your program files if its on on your desktop)
sideclick on the icon
go to properties
compatibility tab
check Windows XP service pack 2
tell it to apply
This should allow you to use itunes

Unable to open iTunes. I have completely unistalled and reinstalled multiple times without any resolution.

Unable to open iTunes. I have completely unistalled and reinstalled multiple times without any resolution. When I try to open it, a shadow/outline comes up as though the window is there but it is transparent and I am unable to see any content whatsoever. I am unable to take any action at all. Please help it's been doing my head in for a looooooooooooooong time!!! TIA

Also, in Task Manager, it always shows that iTunes is "Not Responding".
Cheers

Unable to open itunes store

unable to open itunes store

Close your iTunes,
Go to command Prompt -
(Win 7/Vista) - START/ALL PROGRAMS/ACCESSORIES, right mouse click "Command Prompt", choose "Run as Administrator".
(Win XP SP2 n above) - START/ALL PROGRAMS/ACCESSORIES/Command Prompt
In the "Command Prompt" screen, type in
netsh winsock reset
Hit "ENTER" key
Restart your computer.
If you do get a prompt after restart windows to remap LSP, just click NO.
Now launch your iTunes and see if it is working now.
If you are still having these type of problems after trying the winsock reset, refer to this article to identify which software in your system is inserting LSP:
iTunes 10.5 for Windows: May see performance issues and blank iTunes Store
http://support.apple.com/kb/TS4123?viewlocale=en_US

HT6001 After updated to iTunes 11.1.4 for windows vista , I was unable to open iTunes and it keep error message. My iphone unable to USB hotspot the internet to computer. Pls Help

After updated to iTunes 11.1.4 for windows vista , I was unable to open iTunes and it keep error message. My iphone unable to USB hotspot the internet to computer. Pls Help

Go to Control Panel > Add or Remove Programs (Win XP) or Programs and Features (later)
Remove all of these items in the following order:
iTunes
Apple Software Update
Apple Mobile Device Support (if this won't uninstall move on to the next item)
Bonjour
Apple Application Support
Reboot, download iTunes, then reinstall, either using an account with administrative rights, or right-clicking the downloaded installer and selecting Run as Administrator.
The uninstall and reinstall process will preserve your iTunes library and settings, but ideally you would back up the library and your other important personal documents and data on a regular basis. See this user tip for a suggested technique.
Please note:
Some users may need to follow all the steps in whichever of the following support documents applies to their system. These include some additional manual file and folder deletions not mentioned above.
HT1925: Removing and Reinstalling iTunes for Windows XP
HT1923: Removing and reinstalling iTunes for Windows Vista, Windows 7, or Windows 8
tt2

On my PC win7. Unable to open iTunes

My PC win7,32 bit unable to open iTunes after 4 days gap nor open when iPhone 4S attached to PC,
Try various trouble shooter but of no use, previously there was no issue,
Let me know to overcome this issue

uninstall itunes
use regedit to search and delete ref's to itunes
reboot
reinstall itunes

I had trouble updating itunes to the latest version. It suggested I manually install and that failed. I tried uninstalling and reinstalling and that gave me an error message stating that I could not open itunes because MSVCR82.dll was missing. Help!

When I tried to update to the latest version of itunes, I kept getting a message saying installation failed and if the problem persisted I should try to install manually. When that failed I uninstalled and tried to reinstalled, then I got messages saying MSVCR.dll is missing and could not open itunes. Any solutions out there?

Try the following user tip:
Troubleshooting issues with iTunes for Windows updates

Runtime error - R6034 (Help unable to open Itunes)

Hi All,
After upgrade of Itunes I get the following error when trying to open Itunes
Runtime error
R6034
An application has made an attempt to load the c runtime incorrectly
Any ideas on what to do?
Best regards,
Mette

Hi MettefromDXB,
Welcome to the Support Communities!
The article below may be able to help you with this.
iTunes 11.1.4 for Windows: Unable to install or open
http://support.apple.com/kb/TS5376
Some Windows customers may experience installation issues while trying to install or open iTunes 11.1.4.
Symptoms may include:
"The program can't start because MSVCR80.dll is missing from your computer"
"iTunes was not installed correctly. Please reinstall iTunes. Error 7 (Windows Error 126)”
"Runtime Error: R6034 - An application has made an attempt to load the C runtime library incorrectly"
"Entry point not found: videoTracks@QTMovie@@QBE?AV?$Vector@V?$RefPtr@VQTTrack@@@***@@$0A@VCrashOnOverf low@@***@@XZ could not be located in the dynamic link library C:\Program Files(x86)\Common Files\Apple\Apple Application Support\WebKit.dll”
Resolution
Follow these steps to resolve the issue:
Check for .dll files
Go to C:\Program Files (x86)\iTunes and C:\Program Files\iTunes and look for .dll files.
If you find QTMovie.DLL, or any other .dll files, move them to the desktop.
Reboot your computer.
Note: Depending on your operating system, you may only have one of the listed paths.
Uninstall and reinstall iTunes
Uninstall iTunes and all of its related components.
Reboot your computer. If you can't uninstall a piece of Apple software, try using the Microsoft Program Install and Uninstall Utility.
Re-download and reinstall iTunes 11.1.4.
I hope this information helps ....
Have a great day!
- Judy

Unable to update iTunes.. now unable to OPEN iTunes

I was having trouble trying to update my iTunes because it was unable to uninstall Quicktime.. but now I can't even open iTunes. Windows keeps telling me that it encountered an error and has to shut down the program. How do I get iTunes to open? And how can I update my iTunes and Quicktime?
Windows XP

I was having trouble trying to update my iTunes because it was unable to uninstall Quicktime.. but now I can't even open iTunes. Windows keeps telling me that it encountered an error and has to shut down the program.
let's check to see if the current itunes problem is being caused by a broken or missing QuickTime. (itunes needs a properly functioning QT in order to work properly.) try launching your QuickTime. does it launch properly, or do you get an error message?
if you get an error message, try uninstalling your existing QT from Add/Remove. does it uninstall, or do you get an error message or other unusual behavior?

Unable to open iTunes...missing MediaToolbox.dll

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