Itunes update invalid signature

When attempting to install the latest ITUNES update, the apple software update screen gets about one quarter of the way started and then I get an error that says I have an invalid signature and install will not be completed. This is the first time I've gotten this error and this is the only computer I've ever used. What's going on and how do I fix it?

Try updating your iTunes using an iTunesSetup.exe (or iTunes64Setup.exe) installer file downloaded from the Apple website:
http://www.apple.com/itunes/download/

Similar Messages

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    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!

  • ITunes won't find new iPhone and update invalid signature

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    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.
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    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.

  • ITunes won't update- invalid signature- windows 8.1

    The software takes forever to perform an auto update and then fails. So I chose to use Tools>download for a manual install and it gets approximately half way then gives an error message that it has an invalid signature and auto kills the download.

    help ?  no one ?

  • 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

  • ITunes update  bad signature

    iTunes 9.01 on XP SP3, suggests upgrade with quicktime bundle but download reports an invalid signature (occurs multiple times on multiple XP computers)
    Download of iTunes 8.02 direct will not install, installer jsut says it has encountered an error with no furhter information
    any ideas?

    Oh good ... one of the easier ones again ...
    We're not sure (those of us who're troubleshooting these signature/publisher messages) what the IE issue is for some folks. There's a clue that it might be something to do with subnet settings in some cases as per this thread:
    http://discussions.apple.com/thread.jspa?messageID=10488420#10488420
    ... but we're not sure what Bloody Yeti actually did here and haven't been able to replicate it.
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  • Itunes & QT invalid signature

    I have installed both programs on my laptop (windows based) but my PC will not let me. Every time it tells me that the program was blocked because of an invalid signature. I have turned off my firewall, antivirus and popup blocker. What more do I need to do to make it work? I am runing windows XP home and have IE 7.

    I think I found the answer on Microsoft's page. Start here and see if their solution to this helps you out:
    http://support.microsoft.com/kb/843022

  • Problem updating itunes, keep getting invalid signature error message!!

    Trying to update my itunes to latest version, keep getting "itunes has invalid signature" error message, any ideas of how to remedy this?
    Many thanks in advance.
    Meerkat68

    I've had this problem for awhile in Windows XP SP3. Last night, the simplest thing occurred to me...here's what I did (and I'm telling because it worked).
    1. Clicked on Start
    2. Clicked on Control Panel
    3. Chose Add/Remove Programs
    4. Found Apple Software Updater and clicked Remove, then responded Yes
    5. Went to apple.com and clicked on Support, and then Downloads
    6. Downloaded the latest version of Safari ONLY
    7. Installed Safari (knowing it would install the latest version of Apple Software Update)
    8. AFTER the installation was complete, I clicked again on Start, then All Programs
    9. then, clicked on Apple Software Update

  • I have Windows 8 on my computer. I have Itunes 10 installed, but I cannot download Itunes 11. An error message says that Itunes has an invalid signature. Can anyone help?

    My computer has Windows 8. I keep getting an error message when I try to download Itunes 11----Invalid signature. Can anyone help?

    That suggests that the installer is getting damaged during the download.
    I'd first try downloading an installer from the Apple website using a different web browser:
    http://www.apple.com/itunes/download/
    If you use Firefox instead of IE for the download (or vice versa), do you get a working installer?

  • Invalid signature, tried everything, fml.

    tried using apple updater, invalid signature, tried updating both seperately didnt work, uninstalled and deleted everything remotely close to itunes including my music, tried installing from apple with same result, tried downloading in both IE and firefox (just for humor),tried doing a handstand and praying to buddha, nothing works.
    Looks as though tons of people are having problems / fairly upset with apple right now. A few people have come up with solutions that work for other people but not me. I wouldnt care if I hadn't spent money on an itouch already (had used itouch on an old system, was willing to erase and use on new system).
    Help before I go bonkers.

    If there was a general problem with digital signing in Windows, I would have expected you to have problems with other files.
    But there is something that you can try, make sure that your cryptographic dlls are registered. This article tells you how:
    http://support.apple.com/kb/TS1593?viewlocale=en_US
    Have you had problems installing other programs? You might try downloading the version of Quicktime that does not include iTunes to see if that installer will work.
    I am not sure about all the details of certificates for web sites, but I don't think that is quite the same as for the iTunes installer. They do however affect access to the iTune store.
    oops I forgot the link to the Quicktime download:
    http://www.apple.com/quicktime/download/win.html
    Message was edited by: polydorus

  • 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.

  • 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

  • When I try to update to Itunes 11 I get an error message saying that Itunes has an invalid signature and wont be installed. I use Windows 7.

    Everytime I try to update to Itunes 11 I get an error message saying that Itunes has an invalid signature and can't be installed?  I have tried to install it two times and get the same message each time. Any solutions to my problem?? Those who have installed ITUNES 11 is it hard to work with? maybe im lucky it wont update?? I don't know.

    That suggests that the installer is getting damaged during the download.
    I'd first try downloading an installer from the Apple website using a different web browser:
    http://www.apple.com/itunes/download/
    If you use Firefox instead of IE for the download (or vice versa), do you get a working installer?

  • I am trying to update i Tunes to new version i get a message saying iTunes has an invalid signature and will not install.Any help please.

    I am trying to update iTunes to new version .
    When it goes to install i get a message saying iTunes has an invalid signature and will not install.
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    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.

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