4 Replies Latest reply: Apr 12, 2010 9:10 AM by davemartin63
davemartin63 Level 1 Level 1 (0 points)
I have a HP Pavillion Laptop with Windows Vista 64bit. I installed Itunes and kept on getting Data Prevention Executions has stopped program from running. I turned off DEP for iTunes. iTunes works for about 3 months. I am now getting the same error message DEP has stopped iTunes from working. DEP is still turned off for iTunes. I went into my program file and tried to turn off DEP there for iTunes and now get a message telling me that DEP cannot be turned off for iTunes. Do I turn DEP off altogether so I can use my ipod/iphone?

HP, Windows Vista, 64bit
  • b noir Level 9 Level 9 (72,035 points)
    DEP messages can be caused by old QuickTime componentry being stashed (by other programs than iTunes or QuickTime) in unorthodox places on a PC. On a 64-bit system, the best place to start looking for that is in the sysWOW64 folder.

    From the Start menu, click Open.
    In the Organize menu, click Folder and Search Options.
    Click the View tab.
    In the "Advanced settings" pane under "Hidden files and folders" make sure that the "Show hidden files and folders" option is selected and the "Hide extensions for known file types" option is unchecked.
    Click OK.

    Now open your C:\Windows\SysWOW64\ directory.

    What files or folders can you see in there with QuickTime in the file or folder name?

    (In a normal QuickTime installation there should be precisely two QuickTime files ... QuickTime.qts and QuickTimeVR.qtx ... and no QuickTime folders whatsoever.)
  • davemartin63 Level 1 Level 1 (0 points)
    Hi, I've just upgraded my system from Vista home Premium to Windows 7 Home Premium. I did this so I could use my iPhone / iTunes thinking it was the vista program. I still cannot use iTunes with windows 7 installed. It just will not open. I did a troubleshoot compatability test and it comes up using windows xp service pack 2. I've tried uninstalling iTunes and reinstalling the program and it still wont work. Any help would be greatly appreciated....
  • davemartin63 Level 1 Level 1 (0 points)
    Hi, I just had a look on the file you suggested and the following files are present:- CFCharacterSetBitmaps.bitmap CFUniCharPropertyDatabase.data
    CFUnicodeData-B.mapping CFUnicodeData-L.mapping QuickTime3GPP.qtx
    QuickTimeAuthoring.qtx QuickTimeEssenials.qtx QuickTimeImage.qtx
    QuickTimeInternetExtras.qtx QuickTimeMPEG.qtx QuickTimeMPEG4.qtx
    QuickTimeStreaming.qtx QuickTimeStreamingAuthoring.qtx QuickTimeStreamingExtras.qtx QuickTimeWebHelper.qtx

    this is the only files in this location. Do I delete all of them?
    I've just did an upgrade to windows 7 and still cannot use iTunes.
  • davemartin63 Level 1 Level 1 (0 points)
    I have now solved this problem. I uninstalled itunes and reinstalled it about 4 times. I even upgraded my system to windows 7 and the whole time Quick time was not uninstalled properly.

    Uninstall itunes and all associated applications. restart computer

    Go to start menu and in search programs and file type in program files(86x) click on the link and see if quick time is there if it is delete it and exit.
    Go back to start menu and in search programs and file type in C:\windows\SysWOW64, click on this file and see if quick time is there if it is delete it. restart your computer
    Re-install itunes.

    I did the above and now my itunes works for my iphone / ipod.