HT1926 I can download iTunes update but it is removed as error of invalid signature appears.

Trying to update iTunes, it downloads fine but is the download file is removed when the error message "invalid signature" appears.  What should I do?

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?

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    I would think the link doesn't work now as we are on version 10.7.
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    Hi JEOQ,
    Thanks for visiting Apple Support Communities.
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    Upgraded my iTunes to the latest version(pc),it downloaded  the new version but stopped during intallation.error message "invalid signature"

    That suggests the installer is getting damaged during the download.
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    That is odd. I would uninstall iTunes from the computer and re-install it from scratch. The cool thing is that it won't delete any music or backups and such. http://support.apple.com/kb/HT1925?viewlocale=en_US this here link walks through uninstalling and re-installing iTunes. The basics are going to your control panel and removing iTunes, Quick time, Apple software update, Apple mobile device support, Bonjour, and Apple application support. Then go to iTunes.com and download a new copy of iTunes. This should resolve the issue!
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    i tried to download the latest itunes update, but received an error and now can't open itunes at all. Help?

    Hello bajura007,
    Thank you for the details of the issue you are experiencing with installing the latest iTunes update.  I recommend following the steps below:
    Resolution
    Follow these steps to resolve the issue:
    Check for .dll files
    Go to C:\Program Files (x86)\iTunes and C:\Program Files\iTunes and look for .dll files.
    If you find QTMovie.DLL, or any other .dll files, move them to the desktop.
    Reboot your computer.
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    Reboot your computer. If you can't uninstall a piece of Apple software, try using the Microsoft Program Install and Uninstall Utility.
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    You can find the full article here:
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    http://support.apple.com/kb/TS5376
    Thank you for using Apple Support Communities.
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  • TS1717 I started the download for the itunes update, but before it completed, it said there was an error.  I then went to open itunes, and the message came up that it was not installed on my computer.  Did I lose everything?

    I started the download for the itunes update, but before it completed, it said there was an error.  I then went to open itunes, and the message came up that itunes was not installed on my computer.  Did I lose everything?

    Hello llblake,
    Fortunately, the process of installing or updating iTunes should not affect your library. The following articles can help with getting iTunes properly updated and stabilized.
    Issues installing iTunes or QuickTime for Windows
    http://support.apple.com/kb/HT1926
    iTunes for Windows Vista, Windows 7, or Windows 8: Fix unexpected quits or launch issues
    http://support.apple.com/kb/TS1717
    Cheers,
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    I'm trying to download itunes 10 but I get to a point in the download and it tells me, "The feature you are trying to use is on a network resource that is unavailable" but I haven't had itunes on my computer for a year now so how can I get around this?

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  • HELP !!!I want to give my old apple to my girlfriend, SO SHE CAN PLUG IN HER NEW IPHONE, CREATE AN APPLE ID AND USE MY OLD LAPTOP TO DOWNLOAD itunes music, but im having trouble deautherizing it, and making her the OWNER, IF you get my drift, how to i mak

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    Perhaps, as we have the same music tastes, for now i should just authorize her phone to my power book just to sync music, not pics, contacts etc? I'd hate to overright her contacts etc lol????
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  • TS3258 I get error message -42408 when trying to download itunes update 11.0.2 and thus can not upgrade to latest version.  What should I do?

    I get error message -42408 when trying to download itunes update 11.0.2 and I therefore can not update to that latest version.  What can I do?

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    Regards,
    Braden

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    Hi,
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    Click here and follow the instructions.
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    I have to admit it was a bit scary removing all those things. Is important to note that when re-installing Apple, follow steps to do so as Administrator (the right-click thingy and whatnot).
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