Can't launch iTunes 7

Have been using iTunes for a while. All of a sudden I am recieving an error when trying to launch: "iTunes has encountered a problem and needs to close. We are sorry for the inconvenience." Tried uninstalling/reinstalling iTunes but that didn't help. Not sure what to try next. Couldn't find error in tech support.

now I can't launch iTunes from my computer, my QuikTime Player is no longer working either.
a few questions before proceeding.
are you getting an error message? if so, what does it say? include error message numbers if you're getting any.
or are you getting no error messages whatsoever when you try to launch itunes?
if you're getting no error messages whatsoever, do you just see the wee hourglass for a few seconds, and then nothing? if so, do you also have Norton Internet Security 2005 installed on that PC?
or are you seeing a brief "flash" of the itunes license screen (and then nothing)? if so, do you also see similar behavior when you try to launch your QuickTime?

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Can't launch iTunes due to previous version of QuickTime installed

I installed an older version of QuickTime, now I can't launch iTunes anymore. In Control Panel, I have QuickTime 32--version 2.11.57 listed. I did everything in the document http://discussions.apple.com/thread.jspa?messageID=3366434&#3366434
but nothing has worked. I can't seem to uninstall the old version of QuickTime. When I run QTInstaller713.exe I get an error message about "Can't install because a newer version is already installed"
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There are no QuickTimes listed in the Add/Remove list. I see it listed in the Control Panel where there is a QuickTime and a QuickTime 32 (v2.11.57). I also see it in Start > Programs > QuickTime. When I click on that I get the message: "This action is only valid for products that are currently installed."

Can't launch itunes due to the following error; The procedure entry point AVCFPlayerAppliesMediaSelectionCriteriaKey could not be located in the dynamic link library AVFoundationCF.dll.

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Hey bcolden,
I would try uninstalling and reinstalling following the directions in here:
Removing and reinstalling iTunes and other software components for Windows Vista, Windows 7, or Windows 8
http://support.apple.com/kb/HT1923
This section in particular contains important information in the uninstall process:
Use the Control Panel to uninstall iTunes and related software components in the following order and then restart your computer:
iTunes
Apple Software Update
Apple Mobile Device Support
Bonjour
Apple Application Support (iTunes 9 or later)
Important: Uninstalling these components in a different order, or only uninstalling some of these components may have unintended affects.
Let us know if following that article and uninstalling those components in that order helped the situation.
Welcome to Apple Support Communities!
Best,
Delgadoh

All of sudden, I can't launch iTunes as I get a popup saying "iTunes requires Quicktime 7.5.5 or later". I only have 7.4 currently and the apple site doesn't show anywhere to download Quicktime upgrade. Software Update detects no reqd updates. Help pls??

all of sudden, I can't launch iTunes as I get a popup saying "iTunes requires Quicktime 7.5.5 or later". I only have 7.4 currently and the apple site doesn't show anywhere to download Quicktime upgrade. Software Update detects no reqd updates. Help pls??

Here's a link to the QuickTime for Leopard 7.7 installer:
http://support.apple.com/kb/DL761

Can't launch iTunes!! please help!!

Hi, I can't launch iTunes, I keep getting this error:
"The iTunes Music Library.itl file is locked, on a locked disk, or you do not have write permission for this file."
It's driving me crazy I don't know what to do, someone please help!!

You have to use Tweak UI to restore the music folder in windows, a step by step can be found here http://docs.info.apple.com/article.html?artnum=302398

I can't launch itunes says it's on a locked disk and I don't have write permission for the folder,how do I fix this?

I can't launch itunes on PC it says it's on a locked disk and that I don't have write permissions for the folder.So how would I go about fixing this,any information would be helpfull.Cuz' I wanna transfer stuff from my PC to my Ipad and understand You have to go through itunes to do that.

The path C:/documents and setting/...iTunes.msi cannot be found. Verify that you have access to this location and try again, or try to find the installation package 'iTunes.msi' in a folder from which you can install the product iTunes.
Download the Windows Installer CleanUp utility from the following page (use one of the links under the thingy on the Major Geeks page):
http://majorgeeks.com/download.php?det=4459
To install the utility, doubleclick the msicuu2.exe file you downloaded.
Now run the utility ("Start > All Programs > Windows Install Clean Up"). In the list of programs that appears in CleanUp, select any iTunes entries and click "Remove", as per the following screenshot:
Quit out of CleanUp, restart the PC and try another iTunes install. Does it go through properly this time?

Can't launch iTunes without Quicktime.

I can't launch iTunes. It's telling me I need quicktime 7.5.5. I've uninstalled and reinstalled the latest versions of QT and iTunes and rebooted several times, and I'm still getting the same error message. It was fine 30 mins ago, now it's not working.

'morning.
Try to uninstall your iTunes & reboot then download Quicktime without iTunes http://www.apple.com/quicktime/download/ when installed, (reboot if prompted) & download & install the latest version of iTunes here http://www.apple.com/itunes/download/ .

Can't launch iTunes due to a missing MSVCR90.dll file

iTunes system error. When I try and launch iTunes get the message "The Program can't start because MSVCR90.dll is missing from your computer. Try reinstalling the program to fix this problem." Then it says Error 7 (Windows error 126)
My specs are Win7 64
I had no problems with iTunes since I built this computer 6 months ago. I tried opening iTunes today and poof! it doesn't work.
What I have tried so far: I did a system restore. I uninstalled and reinstalled iTunes multiple times. I did a virus scan: Came back clean. I disabled my firewall settings and uninstalled and reinstalled program and tried to launch. Same error. I did a disk scan on my C drive. I did a registry cleaner with CCleaner. Not sure what else I can do. Any suggestions?

No one else having this problem?

I can't launch iTunes, "Accesing to Itunes Store.." appears

When i launch iTunes, a window apperas "Accessing iTunes Store.." and it never goes away, so i can't use iTunes

First of, what sort of system have you got. (Right-click My Computer in the start Menu and select properties) There are two flavours of Windows 7 x64 OEM (original equipment manufacture) One is a total x64 system for the OS and all programs. The other runs x64 address space for the OS and x32 address space for programs. I had exactly the same problem with my system and microsoft office. Roll back (using the recovery console to rewrite all the original registry values before you upgraded will give you a clean system for the upgrade). The upgrade itself should recognise the correct upgrade version for you automatically. However, sometimes it fails to do this due to data corruption. Go here- http://www.apple.com/itunes/download/ and manually download what you need. after download Right-click the file and select "properties" and click on "unblock" box in lower right corner. close, Then right click the file again and select "Run as administrator". If u still have problems, reboot into Safe mode. Uninstall itunes. Reboot again to safe mode. Disconnect from internet and disable any 3rd party system watch and antivirus programs. Reinstall itunes, then reboot normally. If the problem still persists run a system diagnostic check using "Problem Reports and Solutions" from in Control Panel. Let me know how you get on.

Can't launch iTunes on iPad WiFi

I've had the 16GB WiFi model since launch, and suddenly today when I try to launch iTunes, it comes up blank (I see the navigation icons at the bottom) for about a second then immediately launches the App Store instead.
Some details:
- The account that is logged in to the store has no credit card attached. (It's my son's iPad and his account.)
- I've previously been able to launch iTunes on the iPad with this account before, AND have purchased content with redeemed cards before.
- I've tried a hard reset, and re-synced with his host computer running iTunes 9.1.1, no luck.
- I've tried signing out of the iTunes account via the Settings app, but iTunes still pops over to App Store instead of launching.
- I first noticed this when I tried to gift him an App using my account credentials via iTunes on another machine. I've been able to send him apps this way before.
I am about to try to restore to factory defaults but wanted to check here first in case anyone could think of another way.

Answering my own question:
After restoring the iPad to factory default, and going step by step, I was able to isolate the problem to the "Redeem Code" of the gifted App I mentioned earlier. I worked around the issue by redeeming the gift via the connected PC running iTunes instead.

Can't Launch iTunes? Look out below!

So, I wanted to listen to some iTunes radio at work; my machine is a Dell something-or-other running Windows XP. I downloaded and installed iTunes successfully without a hitch; then I tried to launch it. Much to my dismay, nothing happened! The Windows hourglass would momentarily appear next to the cursor as if the system was trying to launch iTunes, but I simply didn't get anything on the screen. Nothing in the taskbar, no windows, nothing.
Googling around for the issue, I saw a whole bunch of people recommending reinstalling iTunes, reinstalling Windows, messing around with the registry, changing the security settings for iTunes, reconfiguring the firewall, et cetera. I decided that I'd first try to reboot my machine to see if that would help. I began to close all my open programs (Safari, Outlook, and the timecard program for my work), and all of a sudden, I noticed something rather important:
The iTunes Software License Agreement had decided to pop itself up behind all my already-running programs. It had not bothered to give itself a taskbar slot, so I had no idea it was sitting there waiting on my input. Lo and behold, I hit "Agree" to the SLA, and iTunes launched normally.
So, the moral of the story: if you're having trouble launching iTunes on Windows XP, close or minimize all your open applications and see if iTunes' SLA isn't sitting on the desktop, patiently waiting for you to agree to it before iTunes launches. Sometimes it's the simplest of solutions that evade us so thoroughly...

Hey bcolden,
I would try uninstalling and reinstalling following the directions in here:
Removing and reinstalling iTunes and other software components for Windows Vista, Windows 7, or Windows 8
http://support.apple.com/kb/HT1923
This section in particular contains important information in the uninstall process:
Use the Control Panel to uninstall iTunes and related software components in the following order and then restart your computer:
iTunes
Apple Software Update
Apple Mobile Device Support
Bonjour
Apple Application Support (iTunes 9 or later)
Important: Uninstalling these components in a different order, or only uninstalling some of these components may have unintended affects.
Let us know if following that article and uninstalling those components in that order helped the situation.
Welcome to Apple Support Communities!
Best,
Delgadoh

Can't launch iTunes!

Help! Every time I click the iTunes icon, it bounces in the dock once but won't open. I've tried rebooting and reinstalling iTunes. But still, same problem. I have a Mac mini, OS X v 10.4.11. Any ideas on what to do?

okay, all i can think of now would be to clean install Tiger on you machine. before you do that, though, you need to make a backup of your current system. if you don't have it, get an external firewire (PPC machines cannot boot from USB drives). use e.g. Carbon Copy Cloner to make the clone.
start up from the system disk (grey) that came with your machine, use disk utility to wipe your startup disk, and run the installer. right after the installer has finished, you should be given the option to migrate your data - if you like you can plug the external drive in @ that point. or, you can also use migration assistant @ a later stage.
however, i would only migrate your account, network settings, etc., but not the applications ! reinstall those manually.
good luck !
JGG

Can't launch iTunes, get unknown error -50

iTunes was runnign fine on my windows 7 laptop, then all of a sudden it wouldn't launch due to "unknown error -50". uninstall/reinstall itunes didn't fix it. ideas?

Itunes support gave me the following instructions which resolved my problem
1) Open iTunes.
2) Clicked on Preferences and under Parental Controls "Disabled Access" to the iTunes Store.
3) Then checked the box to allow access to iTunes U.
When you try loading the store this time, it send you directly to iTunes U with no problem.
If it does, go back into Preferences and enable access to everything and try reloading the store.

I can't launch iTunes after doing Windows Update in Windows 7.

I had to do Windows Update and iTunes has not worked since. I re-downloaded it, and it didn't work. So I uninstalled it, reinstalled it, and restarted. Now, when I click on it, I keep getting the message: "Do you want to allow the following program to make changes to your computer?" but the program won't launch. Help???

See this thread
http://forums.adobe.com/thread/1381122?tstart=0

ITunes error pop up box and software license agreement - can't launch iTunes

Cannot get iTunes to launch. Pop up box with Display Setting error and a iTunes software license agreement I cannot accept or decline. Anyone seen anything like this?

Download and install the Windows Installer CleanUp utility from Microsoft:
http://support.microsoft.com/kb/290301
Now run the utility ("Start > All programs > Windows Install Clean Up"). In the list of programs that appears in CleanUp, select any iTunes entries, and click "Remove".
Quit out of CleanUp, restart the PC, and try installing iTunes again. Does the install go through this time?

Can't launch iTunes 7

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