DEP prevents iTunes from running Win 7 32-bit

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DEP prevents iTunes from running Win 7 32-bit

Hello, I'm new to this forum, so ANY help will be appreciated!. DEP (Data Execution Prevention) will not allow iTunes to start/run. I used iTunes last, right before I left for a 2-week vacation. Tried to run it after my return, DEP issue. I've tried to add iTunes as an exception, it indicates that iTunes cannot run without DEP running...I've updated iTunes, and Quicktime seperately to their latest versions, still no go...I was going to try System Restore, but it doesn't go back far enough in time to when I left for vacation...I'm stumped, and I NEED to sync my phone to iTunes...please HELP

backlineguy

Nashville, TN

Posted on Oct 9, 2012 12:23 PM

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Answer 1

b noir

Level 9

72,324 points

Oct 9, 2012 2:56 PM in response to backlineguy

Doublechecking. Is your QuickTime Player launching correctly? Or is it refusing to launch too?

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Answer 2

backlineguy Author

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Oct 9, 2012 3:33 PM in response to b noir

thanks for the reply...yes, Quicktime opens and runs no problem...iTunes will not...

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Answer 3

b noir

Level 9

72,324 points

Oct 9, 2012 4:59 PM in response to backlineguy

🙂 many thanks. That's got another possibility ruled out.

Doublechecking ... have you tried a complete uninstall/reinstall of iTunes, as per the following document?

iTunes for Windows Vista or Windows 7: Troubleshooting unexpected quits, freezes, or launch issues

(Sometimes DEPs are thrown if a component in one of the related packages is damaged.)

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Answer 4

backlineguy Author

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5 points

Oct 9, 2012 5:16 PM in response to b noir

Many thanks, b noir for the attention...I have downloaded the latest version of iTunes, and attempting to install it, I see a screen that offers 2 choices; REPAIR, or UNINSTALL...I've twice chosen REPAIR, and I'm still having the issue. I looked on the document you linked in your reply, but I fail to see any instructions on uninstall/reinstall...I'm afraid if I uninstall iTunes, I'll lose all my songs, etc...can't understand why this is happening 'all of a sudden'...it worked fine before I left for vacation...as a side note, I keep seeing a Windows update ( 10 actually) that needs to install...I've installed the updates repeatedly, perhaps 5 times, each time Windows says the installation was successful, yet after a restart, the updates are presented again for install...they are also listed as successful repeatedly on the Windows Update page in Control Panel...thanks again for any suggestions

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Answer 5

backlineguy Author

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5 points

Oct 10, 2012 8:19 AM in response to b noir

added note; tried complete uninstall/reinstall of latest iTunes, same issue. Tried running iTunes as Administrator, same issue. Uninstalled Quicktime, no change. Ready to disable DEP at this point...

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Answer 6

backlineguy Author

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5 points

Oct 10, 2012 8:41 AM in response to backlineguy

ok, disabled DEP in Win 7, still will not run iTunes...getting this error now when attempting to start iTunes:

"C:Windows\System32\mssip.dll is either not designed to run on Windows, or contains an error..."

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Answer 7

b noir

Level 9

72,324 points

Oct 10, 2012 1:58 PM in response to backlineguy

Oooh! A clue:

"C:Windows\System32\mssip.dll is either not designed to run on Windows, or contains an error..."

That suggests damage to one of the security dlls on the system.

I'd first try the fixit from the following Microsoft document. (One of the things it does is reregister your copy of the mssip.dll file.)

You cannot install some updates or programs

... but if you still get the issue, I'd try an sfc /scannow as per the instructions in the following document:

How to use the System File Checker tool to troubleshoot missing or corrupted system files on Windows Vista or on Windows 7

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Answer 8

backlineguy Author

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5 points

Oct 11, 2012 10:02 AM in response to b noir

thanks again b noir for your help with this...I'm frustrated by this. Perhaps I'm not capable of understanding the info on these links...I'm trying to reregister the mssip32.dll file, but I get an error saying I don't have permission to do this...beyond frustrating...and the updates; I tried the FIX IT NOW, and restarted, but I still see the same updates waiting to be installed, even showing them as successfully installed REPEATEDLY...I have to work on something else for a couple days to maintain my sanity...will be open to ANY help I can get...I need to be able to open iTunes...

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Answer 9

backlineguy Author

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Oct 11, 2012 10:04 AM in response to backlineguy

oh, and also ran a error check on the drive, all good, then sfc /scannow, and I get a message at the end of the scan saying it found errors but was nuable to fix some of them...so I have that going for me too

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Answer 10

backlineguy Author

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5 points

Nov 2, 2012 11:21 AM in response to backlineguy

ok, I finally installed an earlier ( older) version of iTunes ( 10.6) and it WILL open, so I'm thinking a Windows update has caused this issue...tried updating after installing the ver that works, no good...tried a slightly newer version that the one that works ( 10.6.3) no good, so sticking with 10.6...thoughts?

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Answer 11

Edimon

Level 1

8 points

Dec 11, 2012 2:40 PM in response to backlineguy

It is very interesting that this problem has been around since at least 2007 for various Windows platforms (Vista, XP, 7) and no one has a solid answer that actually works. But I digress....

I'm running Vista and I have had iTunes on my laptop for 2 years. I recently upgraded from iTunes 10.7 to 11 and the DEP issue started. You solution to go to an older version, which in my case was back to 10.7, worked! My assumption is that the version 11 is not DEP ready yet. Maybe version 11.1....

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