Data Execution Prevention stops quicktime playing.

I can't get quicktime to play at all, every time I try Data Execution Prevention stops it.
I have tried to turn off DEP for quicktime but it won't let me.
I have uninstalled and reinstalled both quicktime and i tunes, also removed any Codec Packs I had installed,( I read to do this on another forum).
Still windows won't let quicktime play, either stand alone or on the net.
I am running Windows Vista.
Thanks for any help in advance.

Just to say "me too".
Fresh copy of Vista, fresh download of itunes & quicktime, installed - quicktime won't start because of a DEP, uninstalled & reinstalled - the same, cannot turn off DEP for Quicktime.

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I had the same issue after my recent update of iTunes. I didn't update Quicktime 'cuz I don't use it much (or at all). On another thread discussing the same issue, I saw that the Quicktime installation can affect iTunes. So I downloaded the latest Quicktime, installed, redooted - issue fixed (for now).

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If you update your QuickTime Player to the latest version, does that clear up the DEP errors in iTunes?

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I have tried to install quicktime and itunes and when i run them windows vista home tells me that Data Execution Prevention has closed the application. I have removed itunes and quicktime and just tried installing quicktime - and i get the same error.
I tried turning off DEP for quicktime - but windows tells me that it cannot be turned off for Quicktime.
Any solution to this?
Thanks!

What are you doing when iTunes or Quicktime crashes? Does it crash on launch?
Have you ever installed a 3rd party Quicktime alternative -- i.e. you downloaded and installed Quicktime from a non-Apple source? (There are some codec vendors that repackage / redistribute Quicktime. I recommend only installing Quicktime from the Apple web site or Apple Update Software.)
When you uninstalled Quicktime, did you do the scorched earth version of the Quicktime uninstall -- where you uninstall, then run the Microsoft Installer Cleanup Utility and then manually search for Quicktime files (particularly in your system folder) and delete them?
What I'm concerned about is that you have a partial, non-standard Quicktime install on your machine.
Do you have any third party iTunes plugins or Quicktime codecs installed?

HT203163 All of a sudden I'm getting a message Itunes has stopped working Data Execution prevention has closed Itunes what is causing this now, never had an issue until yesterday

All of a sudden I'm getting a message Itunes has stopped working Data Execution Prevention has closed Itunes. What is causing this now, never had an issue until yesterday

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Is there a Data Execution Prevention compatable version of iTunes? I have reinstalled iTunes 10.5 at least 10 times, and after it installs, it will not open because of DEP.

I have tried all the advice I have seen on Apple Support discussion boards for the past 2 days, and nothing works. Disabling DEP is not possible, regardless of what the Windows Support discussions tell you. In the meantime, I have absolutely no access to iTunes, or even the ability to update my iPhone or iPod. The only feasable solution is the possibility of a version of iTunes that is compatable with Data Execution Prevention settings.
In the past 2 days, I have: Removed iTunes and related components from the Control Panel (numerous times) Per the instructions on Apple Service discussions pages, I did it in this order. 1. iTunes 2. QuickTime 3. Apple Software Update 4. Apple Mobile Device Support 5. Bonjour ^. Apple Application Support. After all that, I reinstalled iTunes.
Everything looks fine during installation, with no error messages. At the end, it says everything was successfully installed. However, when the installation tool closes, iTunes will only partially open a window, but will stay blank. Then I get the message that iTunes has stopped working and that Windows has shut it down. Then I get notified that DEP has caused iTunes to shut down.
Can someone please help? Or, is there a DEP compatible version of iTunes?
I would appreciate any help. Thanks!!

Polydorus,
Thank you for your kind reply. During the many times I uninstalled iTunes, and all the other Apple programs, I only used the Uninstall Programs in Windows Control Panel. To make a long story short, I found a solution that works for me, but it is still not a complete soluton.
Here is what I did:
I used Uninstall Program in the Windows Control Panel to uninstall everything IN THIS ORDER
1. iTunes
2. QuickTime
3. Apple Software Update
4. Apple Mobile Device Support
5. Bonjour
6. Apple Application Support
Then I went to C:\Program Files and looked for any iTunes or Apple program listed there and deleted it.
I have 64-bit, so I then went to C:\Program files (x86) and looked for any iTunes, QuickTime, Bonjour or any other file or folder that had Apple or any Apple program in the name and deleted it.
I went to C:\Windows|SysWOW64\Quicktime and C:\Windows\SysWOW64\QuicktimeVR and deleted them
Go back to START, and open the "C" drive. Open the USERS folder. Open the folder with your username. Open the AppData folder. Then double-click on the LOCAL folder to open it. If you see any files or folders there that show any Apple program or file, delete those files or folders. Then go to the REMOTE folder and do the same. If there are any other users on this computer, go to each individual user and do the same thing in each LOCAL and REMOTE folder. Restart your computer.
Go to http://www.apple.com/itunes/download/ This is the page where you will actually download iTunes. Scroll down the page to the section under "Windows Software" that says "64-bit editions of Windows Vista or Windows 7 require the iTunes 64-bit installer". Click on that line to get the installer. It will take you to another download window.
Scroll to the bottom of the page to the message that says "Download for iTunes 10.4.1 for Windows (64-bit) here: iTunes for Windows 64-bit." Click there to get the download.
This is not iTunes 10.5, so you will not have access to "The Cloud", but it is at least functional until Apple actually comes out with a version that will not activate the DEP message. There was no combination of uninstalling and reinstalling, with or without Quicktime, with 10.5 that did not cause problems with Data Execution Prevention problems that I found.
I also used Firefox for the downloading instead of Internet Explorer. It just seemed to function better that way.
I hope this is helpful to someone. It's just what worked for me.

Data Execution Prevention will not allow iTunes to open.

This started when I plugged in my iPhone to update it. Data Execution Prevention closed the program then, and I can't open it again. I have completely deleted all Apple programs from my computer. I deleted all temporary files, defraged my hard drive, ran virus protection, restarted my computer and downloaded iTunes 10.0 AGAIN for at least the 10th time. It always appears to install correctly, but when iTunes is supposed to open afterthe install tool closes, I get the "iTunes has stopped working. Winidows is checking for a solution" message. Then Windows automaticly closes iTunes and I get the message that DEP has closed iTunes.
Prior to trying to update my iPhone (which started all this) I was running iTunes 9. I never had any problems with it. (Is there somewhere I could go to download this version?)
At the moment, I do not have Quicktime installed because I deleted it, and it was not installed the last time I installed iTunes. iTunes still will not open.
I enabled myself as administrator, and moved other users to "Standard" in the Vista User Account Control.
I am using Windows Vista Home Premium 32-bit. Apple only gives the option of installing the 64-bit version of iTunes.
Is this just a bug in the iTunes update, or what. I would really appreciate any help I could get with this. I have been reading suggestions and solution on these boards for the past 2 days, and nothing has worked so far.
Thanks!

For general advice see Troubleshooting issues with iTunes for Windows updates.
The steps in the second box are a guide to removing everything related to iTunes and then rebuilding it which is often a good starting point unless the symptoms indicate a more specific approach. Review the other boxes and the list of support documents further down page in case one of them applies.
Your library should be unaffected by these steps but there is backup and recovery advice elsewhere in the user tip.
If you've already tried a complete uninstall and reinstall try opening iTunes in safe mode (hold down CTRL+SHIFT as you start iTunes) then going to Edit > Preferences > Store and turning off Show iTunes in the Cloud purchases. You may find iTunes will now start normally.
tt2

HT1222 "Data Execution Prevention" not letting ITunes launch. How do I remove DEP?

How do I get rid of Data Execution Prevention!!!??? All of a sudden this annoying little program wont allow me to open Itunes!! I tried turning it off the way they said to but it still blocks itunes. I even reinstalled Itunes No luck I still cant use Itunes HELP!!!

And no problem for "barging in"; your expertise in solving Windows issues is always welcome. Cheers.
Thank you.
The situation with these changed up a bit with the introduction of the iTunes 10.5.x versions and above. (A "new problem wearing old trousers" event.) I have a note in the Full Host Bar about it, though it's speculative. Here's the content of the post there:
There's various possible causes for DEP errors when launching iTunes for Windows. But in recent times we've been able to get past a number of them by updating folk's QuickTime Player to the latest version. For example:
Re: When I tried to update to 10.6.3 it failed
The interesting thing about that is that since iTunes for Windows 10.5.x, you aren't supposed to need QuickTime for Windows componentry to be installed in order for iTunes for Windows to launch. So it's not likely that the DEP errors are being caused purely by the lack of QuickTime componentry on the PCs in question (or by the lack of new-enough versions of QuickTime componentry on the PCs in question).
One putative mechanism for what's going on.
I've noticed (in the course of other experimentation) that if the QuickTime Player is uninstalled on an XP system and iTunes for Windows (some version post 10.5.x) is launching, I can get a message saying that certain kinds of content can't be played because QuickTime isn't installed.
So there's a task performed by iTfW when launched to check on the presence of certain types of QTfW componentry. If the answer is "that componentry is not present", a routine is run that shows the dialog saying that certain content can't be played.
It's plausible that Data Execution Prevention is interpreting the routine that produces the dialog as being a malicious act on some systems, and throwing the DEP error when the routine is run.
That would explain why updating (or possibly installing) the latest version of the QuickTime Player is getting people past the DEP errors. The check for QTfW componentry is run when itunes launches, but it determines that the componentry is present. So the routine that produces the dialog isn't run, and Data Execution Prevention doesn't feel compelled to throw the DEP error.

DEP (Date Execution Prevention) Closed iTunes due to security reason

I just bought a new laptop (SONY SR) operated with Window Vista. My laptop never run iTunes since I installed it. I tried uninstall and reinstall again n again, but it just doesn't work.
A screen appeared and say that iTunes stopped working, DEP (Data Execution Prevention) has closed iTunes due to security reason.
How do I off that "DEP"? Thanks!!!

Hi, I just got this problem solved. Hope it helps.
You don't have to turn off DEP or reinstall any program.
The only thing you need to do is associate your Quicktime files ONLY to QuickTime player.
When you open QuickTime it will automatically pop up a window to ask you if you want to fix file association. The answer is positive of course.
If it still doesn't work maybe you could uninstall some codec / media players which associate with QuickTime files.

Itunes wont open because of Data Execution Prevention?

itunes wont open because of Data Execution Prevention?

Hello, ollieallen.
I am unsure what operating system you are running so I am going to include articles for Windows XP and Vista, 7 and 8. Completely uninstall all components of iTunes and then reinstall the program.
Removing and Reinstalling iTunes, QuickTime, and other software components for Windows XP
http://support.apple.com/kb/HT1925
Removing and reinstalling iTunes, QuickTime, and other software components for Windows Vista or Windows 7
http://support.apple.com/kb/HT1923
Cheers,
Jason H.

TS1277 my itunes wont open beacause of a Data Execution Prevention harming my pc

My itunes wont open because of a Data Execution Prevention harming my PC. What can i do?

I had the same issue after my recent update of iTunes. I didn't update Quicktime 'cuz I don't use it much (or at all). On another thread discussing the same issue, I saw that the Quicktime installation can affect iTunes. So I downloaded the latest Quicktime, installed, redooted - issue fixed (for now).

I recently did an update for my iTunes and now when I try to open it, I get an error that says that my data execution prevention is not allowing it to open. How do I fix this issue?

I recently did an update for my iTunes and now when I try to open it, I get an error that says that my data execution prevention is not allowing it to open. How do I fix this issue?

Try updating your QuickTime to the most recent version. Does that clear up the DEP errors in iTunes?

Data Execution Prevention stops quicktime playing.

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