Itunes invalid signature 10.6

Hello Apple Community,
I am trying to download an update for itunes and keep getting the same error.
This is the first time this has happened. We bought an iPad recently, could it be because of that? The account is the same.
I have shut down the application and run a diagnotics and then restarted the PC.
If I uninstall and reinstall, will i lose the "profile"?

I have the same problem but the link http://support.apple.com/kb/DL1426 doesn't work. May I have a new link to solved the problem ?

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HT1926 itunes invalid signature

Somebody please help me! It won't let me download the newest version of itunes. It just it has an invalid signature.

Go directly to Apple link to download
http://support.apple.com/kb/DL1426
Select "Save" instead of "Run". Once downloaded, double click the iTunesetup.exe to install.

Errror downloading iTunes: Invalid signature

I have been running an old version of iTunes with no problem & have just downloaded the new version 7.6? I got an error halfway thru the download "iTunes has an invalid signature it will not be downloaded". I carried on & the icon installed etc. & Quicktime tells me itunes is installed correctly, but when I try to launch it nothing happens. Has anyone got any suggestions. Tried un-installing & re-installing, running all my system scans & nothing works??

atvrcr500,
Have you tried connecting through a different router? That has solved the "invalid signature" problem for several folks.
Example:
http://discussions.apple.com/thread.jspa?messageID=10652940

ITunes invalid signature upon update

When I try to update iTunes to the latest version 10.5 I keep getting an error message "iTunes has an invalid signature. Download has been removed"
I am using Win7 64 bit desktop.

Hi there arnold0937,
You may find the troubleshooting steps in the article below helpful.
Trouble installing iTunes or QuickTime for Windows
http://support.apple.com/kb/HT1926
-Griff W.

Itunes invalid signature

I'm trying to download the latest version of itunes, actually I've tried downloading several different versions now to no avail. I'm using vista and have tried everything I have came across and nothing works. I have all the latest windows updates. I've tried unblocking after downloading the installer, I've tried downloading from both FF and IE8 and checked the "download even if signature is invalid" box in IE. I've been trying to download for months now and cannot figure out what is wrong or what is left to try. Ultimately I'm wanting to buy an iphone but looks like apple isn't gonna get my money if someone doesnt fix the **** file!

Are you getting this error : Windows reports that iTunesSetup.exe is not a "valid Win32 application
If so check out this article : http://support.apple.com/kb/TS1406
2, more detailed descriptions, of the fix here : http://www.zolved.com/synapse/viewcontent/28312/Itunes_Error__iTunesSetup_exe_is_not_a_valid_Win32applicat
and here : http://hubpages.com/hub/itunes-setup-exe-not-a-valid-win32-application-error
edit : If all else fails have a friend download the latest iTunes/Quicktime and burn it to disk for you.
In addition you may want to use the Windows Uninstaller : http://support.microsoft.com/kb/290301
That should give you the necessary basis for a clean install of iTunes software.
Message was edited by: Pamela Gadsden

ITunes "Invalid Signature" Error

I have the same problem with upgrading Itunes as so many other members in this forum but I couldnt solve the problem suggested by users in other topics, hence I dont know how to change the internet connection from home to public group connection,,

Ok: Windows Vista 32 with MSE and Windows firewall completely turned off. Using the above suggested method allowed it to download, but brought me to the dreaded "Not Valid Win32 Application" error message. Last week I had spent two weeks fighting to get ver 9.2.0.61 to download and install caught up in this vicious cirlcle of forums, questions, answers, and NO help support. The solution was to download, install and run Malwarebytes to "clean" my computer. Once that was accomplished I was able to completely DL & Install that ver. Also, I am attempting to update my ipod to 4.0 and it won't download either. Very tired of these faulty products.
32 bytes, Microsoft Security Essentials, Malwarebytes, Windows Firewall, discs cleaned and defragged, uninstalled with Revo Pro, then downloaded with Firefox and re-installed with IE8.

ITunes won't find new iPhone and update invalid signature

Trying to restore from iPhone 4 Restore backup to new iPhone 6 (Windows 7) and encountered the following......
When trying to connect the new iPhone 6 to my existing iTunes account, iTunes would not show the device (couldn't find it). Received a popup that stated the phone could not be recognized and an update to 11.4 (12.1....) was required. [[ I found this strange since I just updated and backed up my iPad and old iPhone 4 last night in anticipation of getting the new iPhone 6 today.]]
I tried the update multiple times but it would stall 15 minutes in and give the message "invalid signature" and error out. I looked through many comments on this support sight, read what related help was available through iTunes help, etc, and spent HOURS trying each one (listed below). A combination of a couple of steps finally worked for me so I am sharing this to hopefully save you some time and frustration. MUCH frustration.
Tried but did not resolve..... updated new phone to current 8.1.1 and made sure 'Find My Phone' was turned off.
Tried but did not resolve..... downloaded iTunes manually from within iTunes.
Tried but did not resolve .... downloaded iTunes manually from Apple.com downloads.
Tried but did not resolve..... downloaded Firefox (an alternative browser) and manually downloaded iTunes again from Apple.com.
WARNING: The following resolution will wipeout any previous iTunes settings like views, organization, etc. It will also wipeout any previous setup already done in your new iPhone other than fingerprinting, language and date/time setup. Email accounts, setup preferences, etc, will be wiped. Also, your old phone will no longer work with iTunes - apprently this new software issue will only recognize one phone. Your music, contacts, most apps (I did lose a few), if backed up from your old phone properly before starting this process will 'Restore' to your new phone in the updated iTunes.
Tried and worked..... Closed iTunes. Went to Start on my computer, typed itunes64setup. I had two itunes64setup listed due to the first manual download from Apple and then the one done again via the Firefox browser. I chose the one downloaded from the Firefox browser - not sure it would make a difference. (If you have two listed, Hover your mouse over each and it will give you the times of when they were downloaded). Right click on the itunes64setup and choose 'Run as Administrator'. (You may incur issues with this step if using a work proprietary computer.) Opened iTunes and plugged the iPhone 6 in and it recognized the phone. I was then able to 'Restore' info.
Since I had already tried the manual downloads, I am not sure if they were necessary and maybe running the itunes64setup only would have resolved the issue. If you are addressing the iTunes update iPhone 6 issue and try the itune64setup without the manual downloads, etc, and it works, please update this support entry so others can follow your lead.
Thanks!
What Apple is not telling (WARNING) their faithful users about is that they obviously have software issues for existing users in the 'Windows' world when upgrading to the newer phones and to do so you are going to need to spend some time and effort. This is strike two for me, just coming off the 8.1.0 iPad 2 upgrade debacle Apple put so many of us through. Shame Shame, Apple! It's called Q/A and should be applied to all your users environments and not just those who have everything new in an Apple/Mac only world. There are more of us that don't. Thx!

Step one : Please restart EVERYTHING involved. This means your cable modem / dsl router, Airport Base Station if you have one, your computer, your iPhone / iPod Touch / iPad (2) if applicable. Shut it all down and power it all back up in the appropriate order (modem / router / computer, et cetera)
Step two : Make sure you have the most recent version of all software. Verify you have the latest version of iTunes and the Remote software. Check to make sure the AppleTV has no updates as well.
Step three : Enable Home Sharing on all applicable devices.
Step four : Make sure the AppleTV and the computer are both hooked up to the same network, wireless or otherwise, and make sure if you have a non-Apple router anywhere in the mix it is allowing traffic to flow freely between all the Apple tech. Apple has specific documentation on this. Search the Support site for "Apple TV: TCP and UDP ports and protocols used" and make sure none of those ports are being blocked by the router or any firewall software you may have running, like Zone Alarm.
Step five : Fire up the Remote app on your phone, and let it search for your AppleTV. There should be no passwords required anywhere if the Apple tech is properly talking to one another.
Step six : If all the above still doesn't work, then call in a professional who can get eyes on the equipment and do a proper job of troubleshooting.
Please let us know if this does not help.

When I try to download the latest version of iTunes on my iPod Classic I get the message that "iTunes has an invalid signature" and that "Content was blocked because it was not signed by a valid security certificate. Anyone know how to fix this?

When I try to download the latest version of iTunes from apple.com, I get the message "Content was blocked because it was not signed by a valid security certificate."When I open iTunes and try to download the latest version there, I get the message "iTunes has an invalid signature. The download has been removed." I have also gotten an Internet Script Error stating that an error has occured in Line 0, Char O and that "Access is denied to images.apple.com/global/scripts/lib/iepngfix.htc." This problem has never occurred with earlier versions of ITunes. Anyone know how to fix this problem?

Are you downloading iTunes form an Apple website or somewhere else? If the answer is somewhere else, try downloading it from Apple. Click on iTunes in the black menu bar above and go from there.
Let us know what happens.

I run Windows 7 and the newest version (10.6) of iTunes will not install. The installer won't even begin, and when I run the Apple Software update, it tells me that iCloud and iTunes have invalid signature.

When I run the Apple Software update, it tells me that iCloud and iTunes have invalid signature and will not be downloaded. When I DL iTunes64setup.exe, the program will not start (there's a bar that flashes but nothing actually begins). I've done everything short of reinstalling Windows to fix this (system resore, unistalling all Apple products, taking down firewall, running Windows FixIt - which either won't find the problem or gives me an error saying that the troubleshooter cannot be downloaded at this time, going into the security features to allow programs without valid signatures, trying to install earlier versions of iTunes). It all started when I downloaded the Decemberists new album on my iPhone, and it wasn't downloading it properly so I connected it to my Dell, but some songs still wouldn't DL - also, the newest OS for my iPhone still won't install via WiFi - and so I uninstalled iTunes first, but nothing is helping. And I don't have any security issues (Norton has checked). Any ideas? I'm at my wit's end after 3 days of this. Thank you.

Ok, so after like 4 days of going through all these different issues, I figured out that several programs weren't downloading, and it was an issue with my wireless connectivity messing up the digital signatures, so if you plug in your comp to the modem and delete your temp files, it should start to work!

HT1926 Trying to download itunes update on my computer windows Xp... Tried 3 times and keep getting an error: invalid signature/will not be installed. HELP

iTunes is downloaded, been using it for years. I went to download an update and I keep getting an error.Error message is: invalid signature/will not install.
I did try to update manually as instructed however that also came with the same error.
If someone can advise it would be greatly appreciated.
So what is an invalid signature and how to fix it???

I would think the link doesn't work now as we are on version 10.7.
If you go to:
http://support.apple.com/downloads
the latest update for itunes is in the left hand column. If you follow the rest of the instructions from wiclee/fimeck it should work.
"Select "Save" instead of "Run". Once downloaded, right click the iTunesSetup.exe or iTunesSetup64.exe and select 'Run as Administrator' to install." (or use default)

I am getting "invalid signature" error when i try updating itunes. How do I fix?

I received a notice that an update was available for itunes. I went through the installation
process and then near the end an error message came up telling me that it would not be installed
because of an invalid signature I tried doing this again only manual this time and the same thing happened.
I have never had this happen before. What is the problem? How do I fix?
Thanks, JKay

Twanger317,
Have you tried to do a repair install on the pc of iTunes? Also if that does not work i would follow these instructions on removing iTunes and reinstall. http://support.apple.com/kb/HT1923 for windows vista and 7 and http://support.apple.com/kb/HT1925 for windows xp. let me know if that helps.

Please help me itunes 8 wont load w/ invalid signature error

There has to be some sort of cosmic joker who is laughing at all of us. Perhaps the folks at Verisign are playing games with us or maybe it's Microsoft. How can there be a requirement to upgrade to itunes 8 when you purchase a new Nano and then not be able to do it because of an invalid signature error. I'm not the only one who has had this problem as I see it all over the web. I have tried it on another system sitting right next to this one (Win vista x32bit) and it didn't work either. I have deleted everything and updated win installer ver 4.5 and nothing works. The application wont run because of the signature error. I'm sure that the powers that be know what the problem is but dont want to release the fix because one side or the other hasn't been paid the appropriate money. It's always about the money. I have read every thread and suggestion that I could find but cant get it to work. If anyone has the answer please help me. I'm not a technotard and this is frustrating

I am afraid AFIK a clear cut solution for this hasn't emerged.
Are you trying to update with Apple Software Update. You might try repairing it from add/remove programs and trying again after a restart.
Have you tried downloading the iTunes installer from here:
http://www.apple.com/itunes/download/
Save the file on your desktop and run it from there.
I would clear your temporary Internet files and restart your PC before doing this.
If that doesn't work, maybe running the installer from your browser would work, although saving the file is usually best.
I have one report that a problem with a router causes this problem and that replacing the router fixed it, but in this case all downloads were affected.
It would be interesting to see if you can install the standalone Quicktime as a test. You can download it from here:
http://www.apple.com/quicktime/download/win.html
You want the version without iTunes, which is not the default.

Itunes cannot be updated because it has an invalid signature

I am trying to update my itunes as well as my icloud on my computer. When I update them, I get an error message that tells me it cannot be updated because of an invalid signature. Since I cannot update either of them, I cannot do the new iso8 update on my computer.
Help!

try this. it worked for me.
http://en.kioskea.net/faq/11771-allowing-software-with-invalid-signature-to-run- or-install

Itunes 10.7 wont startup or run on windows 7 64 bit,, while downloading it from previous version of itunes say invalid signatures.

whenever i used to download something from itunes it restarts in mid,, and starts again and does the some for a long time and atlast says error 8008. Then i tried to upgrade it new itunes would download for some time then gives error saying invalid signatures,, I then downloaded itunes 10.7 from apple website.. download completes and it wont run.. wont start up.. I have tried Run as administrator used new user accounts, downloaded it again and again deleted temp folder aswell, deleted itunes library from my music folder aswell, done everything i found in discussions but that wont help,

Apologies about the delay. I've been brooding.
Although we don't know where the specific relevant keys are on modern versions of iTunes, there's a shotgun approach we can take to dealing with them, which has a reasonable chance of success in this case. The complicating factor in your case is that you've got a 64-bit Windows. So there's an extra hoop to jump through.
The basic approach is the procedure from the following weblog entry:
[Solving setup errors by using the SubInACL tool to repair file and registry permissions|http://blogs.msdn.com/astebner/archive/2006/09/04/solving-setup-err ors-by-using-the-subinacl-tool-to-repair-file-and-registry-permissions.aspx]
The complicating factor is that we have to make an additional edit to the reset.cmd file.
When you're in Notepad, replacing the two YOURUSERNAME values with the name of your Windows 7 user account, in the first line of the batch file, replace the:
%programfiles%
... with:
%ProgramFiles(x86)%
(On a 64-bit Windows system, subinacl is installed in a different location than on 32-bit systems. So unless we make that change, the reset.cmd isn't going to be able to find subinacl and the reset.cmd won't work.)
While you're in Notepad editing the file, make sure each of the nine lines of the file start of a new line. (Sometimes they get smooshed up together on a single line, and then again the reset.cmd won't work.)
I'd strongly suggest setting up a System Restore point immediately prior to running the reset.cmd. There's instructions on that in the following document:
http://www.bleepingcomputer.com/tutorials/tutorial143.html#manual

I am trying to upgrade to iTunes 11.4 and get an error message that says " iTunes has an invalid signature. It will not be installed" How do I fix that?

I am trying to upgrade to iTunes 11.4 on my Windows7 PC and get an error message that says " iTunes has an invalid signature. It will not be installed" How do I fix that?

Hi curliejo,
Welcome to the Apple Support Communities!
In your situation I would recommend the steps in the following article for troubleshooting iTunes. It may be necessary to completely remove and reinstall iTunes in this situation. Be sure to remove all of the components with iTunes in the correct order as outlined in the article before installing fresh.
Issues installing iTunes or QuickTime for Windows
Have a great day,
Joe

Itunes invalid signature 10.6

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