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.

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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.

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

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 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 ?

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.

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)

HT1926 itunes wont update because of invalid signature?

on Windows Pro, trying to update itunes and it stops towards end of download, wont install because of "invalid signature". how do i do a "manual update"?

cannot remove an older version of bonjour
Download the Windows Installer CleanUp utility from the following page (use one of the links under the "DOWNLOAD LOCATIONS" thingy on the Major Geeks page):
http://majorgeeks.com/download.php?det=4459
To install the utility, doubleclick the msicuu2.exe file you downloaded.
Now run the utility ("Start > All Programs > Windows Install Clean Up"). In the list of programs that appears in CleanUp, select any Bonjour entries and click "Remove", as per the following screenshot:
Quit out of CleanUp, restart the PC and try another install. Does it go through this time?

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?

HT1926 why PC says "invalid signature" can't install itunes update?

Trouble updating itunes. Message says "invalid signature" and aborts updating. How do I fix?

You can try manually updating by uninstalling the current version you have and going to http://apple.com/itunes/download

HT1926 itunes update says invalid signature??

I am trying to update my itunes on my HP pc. I got an error message, which said to try Tools, then Download Only. I tried that, it started to download, then quit when I got a message that said "itunes has an invalid signature, the download has been removed." This has never happened before, and I have updated itunes many times! Can anyone tell me what is going on??

You can try manually updating by uninstalling the current version you have and going to http://apple.com/itunes/download

HT1926 Down loaded ITunes latest version,but intallation did not complete.Error message "invalid signature"

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

HT1926 unable to install new iTunes as it states it has an invalid signature. what is this.

unable to install new iTunes as it states it has an invalid signature. what is this.

That one suggests the installer has gotten 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?

Itunes and quicktime says it has an invalid signature so it cannot be installed.can someone tell me what to do

itunes and quicktime says it cannot be installed as it has an invalid signature.what do i do? Can anybody help?

Hi vikashmetals,
Here is an article of steps for trouble installing iTunes:
Trouble installing iTunes or QuickTime for Windows
http://support.apple.com/kb/ht1926
Have a good one,
- Ari

When I attempt to update iTunes to 11.2, I get an error "invalid signature"

I have tried to update iTunes several times and continue to get this "invalid signature" message. I have tried to download and install and manually download with the same results. Any help is appreciated.

Hey HStuart13,
Thanks for the question. I understand that you are experiencing issues updating/installing iTunes for Windows. The following resource may provide a solution:
Issues installing iTunes or QuickTime for Windows
http://support.apple.com/kb/HT1926
Thanks,
Matt M.

HT1926 itunes invalid signature

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