Firefox will not start I recieve error that Data execution Prevention will not let it start.

I am running Windows Vista home premium service pack one. I have never had a problem with firefox until 9-27-11 when upon clicking on the icon to open Firefox I got a windows error message saying that Data Execution Prevention has stopped the program from running. At certain times however, it will work. No other programs have been affected. It will not run in safe mode either.

You can try reinstalling Firefox. You can get the latest version for free, as always, at [http://getfirefox.com getfirefox.com]. Just install it over your current install. No data will be lost.
If that doesn't help, it's possible that you are having a problem with some Firefox add-on that is hindering your Firefox's normal behavior. Have you tried disabling all add-ons (just to check), to see if Firefox goes back to normal?
Whenever you have a problem with Firefox, whatever it is, you should make sure it's not caused by one (or more than one) of your installed add-ons, be it an extension, a theme or a plugin. To do that easily and cleanly, run Firefox in [http://support.mozilla.com/en-US/kb/Safe+Mode safe mode] (don't forget to select ''Disable all add-ons'' when you start safe mode). If the problem disappears, you know it's from an add-on. Disable them all in normal mode, and enable them one at a time until you find the source of the problem. See [http://support.mozilla.com/en-US/kb/Troubleshooting+extensions+and+themes this article] for information about troubleshooting extensions and themes and [https://support.mozilla.com/en-US/kb/Troubleshooting+plugins this one] for plugins.
If you need support for one of your add-ons, you'll have to contact its author.
If the problem does not disappear when all add-ons are disabled, please tell me, so we can work from there. Please have no fear of following my instructions to the line, as all can be easily undone.

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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?

Run NXtest will get a Warning will appear saying that Data Execution Protection is not activated in Win8.1 OS.

Hi I'm Notebook SW compatibility engineer. When We test NXtest function has some question need your feedback.<o:p></o:p>
Step as below<o:p></o:p>
Open System Properties | Advanced | Performance Options | Data Execution Prevention.
Set the Option to 'Use DEP for essential Windows programs and services only'
Then run NXTEST tool will get a Warning will appear saying that Data Execution Protection is not activated in Win8.1 OS.
Can you help to confirm this result is correct or not? <o:p></o:p>
Thanks and wait your feedback~~

Hi Thanks
I can see "Your
computer's processor supports hardware-based DEP." as your attached picture.

I have been trying to work on my homework all afternoon, via NAU's blackboard system. I am continuously getting booted out of the system, with an error stating "Data execution prevention". How can I prevent this from continuing?

I have been trying to work on my homework all afternoon, via NAU's blackboard system. I am continuously getting booted out of the system, with an error stating "Data execution prevention". How can I prevent this from continuing?

If you are wondering why you are not getting any responses, it is because you have vented a complaint without any details that make any sense or give anyone something to work on.
If you want help, I suggest actually detailing what has happened, with versions of software etc. Anything that would let us assist.
As a start I am guessing that you have not really got the hang of "How it all works". Firstly download the Pages09_UserGuide.pdf from under the Help menu. Read that and view the Video Tutorials in the same place. A good addition would be the iWork 09 Missing manual book and something to help you learn how to use your Mac.
If there are specific tasks you need help with:
http://www.freeforum101.com/iworktipsntrick/index.php?mforum=iworktipsntrick
Is a good resource.
Peter

I am unable to access iTunes. Receive error regarding data execution prevention. I've tried unloading/reloading. Suggestions?

I am unable to access iTunes. Receive error regarding data execution prevention. I've changed the Performance Options to exclude DEP for iTunes and I've tried unloading/reloading. Still no success. Suggestions?

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

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

How can I upgrade Software version 4.2.1 so that the Wondows Data Execution Prevention does not closr iTunes?

Hi I am trying to add some CD content to my iPod. Windows Data Execution Prevention closes itunes even though I have enanbled the iTunes exception. Is there an upgrade fro software version 4.2.1
which addresses this problem?

Welcome to the discussions,
you will lose your all music you did not buy it in the iTunes Store. The rest can be copied to the new computer by using "transfer purchases" from the File menu in iTunes.
Disable autosync in iTunes on the new computer before you connect, set up your account, authorize in the Store menu and set up at least one contact and event on the new computer, to be able to merge data after your device got erased during the first sync.
After transferring your purchases, back up manually by using "backup" from the same menu.
See what's included in the backup here: http://support.apple.com/kb/HT1766
After your device got wiped during the sync process, restore from that backup again.
It may be useful to create an own user account on the computer, to be sure the content from your ipod will have it's own iTunes library.

When will Apple fix the itunes error that insists the computer is not authorized when it is.

I know lots of people post solution to this, usually trashing the device and starting with a fresh AID but that is not an acceptable solution.
APPLE if you are listening, we do not want to have to start from scratch after updating itunes!
I guess the problem might be linked to the fact that 4 different members of the family use itunes for their device but I am sure this is not unusual.
It is unacceptable for the software to screw up like this, it seems to completely lose track of which ID is used for which device and now will not sync, saying
And when I go through authorization again

These are user-to-user forums, you are not talking to iTunes Support nor Apple. If you think that there is a bug then use the feedback page to report it to Apple : http://www.apple.com/feedback/itunesapp.html
The account that was used to purchase 'CBi' is authorised, as is any other account that has content in that iTunes library and/or on the devices that are synced to it ?
If you being repeatedly asked to authorise an account : iTunes repeatedly prompts to authorize computer to play iTunes Store purchases

Itunes error. the data execution prevention pops up and says "to protect your computer, windows has closed this program. Data execution prevention helps protect against damage from viruses and other threat.

I have a windows Xp computer. and i needed to download the newest itunes to support my ipod touch. but now my computer doesn't let me open itunes. The the data execution prevention pops up and says "to protect your computer, windows has closed this program. Data execution prevention (DEP) helps protect against damage from viruses and other threat." I tried excluding itunes from DEP on settings but it still doesn't work. I don't know what to do. please help me!!!
thanks

try to select the computer cd/dvd autorun off.
I had the same problem, then Kaspersky software found a conflict suggesting me this solution.
Itunes now works...even if it always asks to set the cd/dvd autorun on when lunched.

Data Execution Prevention prevents itunes from opening on my user ID, but not every other user ID.

I completely deleted every Apple file from my computer. There are 4 user IDs on my computer. Mine is the Administrator, my husband's ID my son's ID. and a completely new ID I set up to see if I could get iTunes to work.
I reinstalled iTunes 10.5 on my Administrator ID. The installation went fine, but iTunes will not open in my ID, or my husband's ID. I get the message that Data Execution Prevention has closed it. iTunes will open in my son's ID, as well as the new ID I set up for iTunes testing.
I have tried uninstalling (deleting ALL Apples files) and reinstalling on my ID as a Standard user. Same thing. iTunes doesn't work on my ID or husband's, but does on the other 2 User IDs.
I have not activated Microsoft Outlook on the 2 IDs where iTunes works. Outlook is activated on the other 2 User IDs.
Does something about Outlook cause me to get the DEP error? Is there a way to fox this problem? I really don't want to have to go to a completely different User ID everyt ime I want to use iTunes.
I am using Windows Vista Home Deluxe, and installing the 64-bit iTunes download on the Apple.com website.
I have used instructions from several documents here on the Apple boards. The ones I use most are "iTunes for Windows:Doesn't open after upgrading in Windows Vista of Windows 7". "iTunes for Windows of Windows 7:Troubleshooting unexpected quits, freezes, or launch issues", and on this one, I followed the instructions for user-specific troubleshooting. I also followed the instructions in "General installation troubleshooting".
I have uninstalled and reinstalled iTunes so many times, i can almost do it in my sleep. Somebody please help. My iPhone and iPod need updating!! Thanks!!!

OS X 10.7 Lion, 10.8 Mountain Lion, 10.9 Mavericks and 10.10 Yosemite
Reset Password
Start the computer,then press and hold down command and R keys to start into recovery partition.
When you see the Apple logo, release the keys.
Wait until OS X Utilities window shows up.
Move the mouse to the menubar at the top and click "Utilities", then select "Terminal"
from the drop down.
Terminal window will appear.
Type in resetpassword and press enter on the keyboard.
Leave the Terminal window open.
Reset Password Utility window will open with Macintosh HD selected.
Select the user account from the popup menu box under “Select user account”.
Enter a new password.
Reenter the new password for the user.
Enter a hint.
Click the "Save" button.
Click  in the menubar and select Restart.
Log in.
If Keychain dialog box appears, select “Create New Keychain”.

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.

What to do when you get an error message about data execution prevention

i have windowsXP and i downloaded Itunes now that i try to open itunes i'm getting an error message about Data Execution Prevention. Please let me know what to do to be able to open itunes...

You came from the correct article. Here is what it has to say about that error.
Error 2, 4 (or -4), 6, 1000, 9006
Follow the steps to troubleshoot security software. Often, uninstalling third-party security software will resolve these errors.
There may be third-party software that modifies your default packet size in Windows by inserting a TcpWindowSize entry into your registry. An incorrectly set default packet size can cause these errors. Contact the manufacturer of the software that installed the packet size modification for assistance or follow this article by Microsoft: How to reset Internet Protocol (TCP/IP).
Verify that access to ports 80 and 443 are allowed on your network.
Verify that communication to albert.apple.com or phobos.apple.com isn't blocked by a firewall or other Internet security setting.
Discard the .ipsw file, open iTunes and attempt to download the update again. See the steps under "Advanced steps > Rename, move, or delete the iOS software file (.ipsw)" below for file locations.
Restore your device while connected to a different network.
Restore using a different computer.

Hi installed Photoshop Cs6 on my Vista os and crashes gives following error DEP (Data Execution Prev

Hi installed Photoshop Cs6 on my Vista os and is crashing the Photoshop and gives following error DEP (Data Execution Prevention) can someone help me..

no I did not receave any errors during instalation. Yes I installed it before but occured same problem so I unstalled and made a new isntall.
I found these in the end of the log hope these helps.
Please search the above error/warning string(s) to find when the error occurred.
These errors resulted in installer Exit Code mentioned below.
[ 4460] Fri Nov 02 19:54:12 2012 INFO
Exit Code: 0 - No error.
Please see specific errors and warnings for troubleshooting. For example, WARNING: DF029, DW024 ...
*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*
END - Installer Session
*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*

Downloaded Reader XI and started to recieve error 40000015, found the fourm with the patch to the registery fix, now it tells me unable to connect to the server. To many bugs with the reader, how do reinstall an older version?

downloaded Reader XI and started to recieve error 40000015, found the fourm with the patch to the registery fix, now it tells me unable to connect to the server. To many bugs with the reader, how do reinstall an older version?
I click on the launcher and nothing happens, 15 min later it will tell cant connect to the server.
My computer is a windows 8.1; 64 bit operating system. I am stationed in South Korea, but that should not affect the program. Help please.
John

Hi johnd83157268,
Sorry for the inconvenience that has caused to you.
Could you please let me know what changes have you made in the registry.
You might need to uninstall Adobe Reader from Control Panel and try install it again from the following link:
Adobe Reader Install for all versions
Please ensure that you are logged in as administrator and anti-virus is disabled as that might interrupt installation.
Try again and then let me know.
Regards,
Anubha

Data Execution Prevention (DEP) has not allowed firefox to start, even after reinstalling firefox

Firefox will not start. Windows message tells me Data Execution Prevention (DEP)has prevented this program from starting. Help says: If DEP notices a program on your computer using memory incorrectly, it closes the program and notifies you.

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

Firefox will not start I recieve error that Data execution Prevention will not let it start.

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