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.

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TS3694 When I try to update my ipad to IOS6 I get and error 6 message. Any idea what that means and how to fix it? I tried updating via Itunes and also normal download.

When I try to update my ipad to IOS6 I get and error 6 message. Any idea what that means and how to fix it? I tried updating via Itunes and also normal download.

What model iPad and what version of iOS is it currently running?
iPad: Basic troubleshooting
http://support.apple.com/kb/TS3274
Update and restore alert messages on iPhone, iPad, and iPod touch
http://www.buybuyla.com/tech/view/012953a0d412000e.shtml
iOS: Resolving update and restore alert messages
http://support.apple.com/kb/TS1275
iPad: Unable to update or restore
http://support.apple.com/kb/ht4097
 Cheers, Tom
Error 2, 4 (or -4), 6, 1000, 9006
Follow Troubleshooting 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. Your default packet size being set incorrectly 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 photos.apple.com is not 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.
Message was edited by: Texas Mac Man

When downloading the new update to my windows 7 I get the error MSVCR80.dll not available. I can't access my itunes at all. Please help

When downloading the new update to my windows 7 I get the error message MSVCR80.dll not available. I can't access my itunes at all. Please help

Follow the instructions of tt2 in https://discussions.apple.com/thread/5822086 and note to run the installer as admin

HT202157 When I try to update my Apple TV software, I get an error message "update was unsuccessful try again later". I've tried downloading the update for two weeks. Are there any recommendations?

When I try to update my Apple TV software, I get an error message "update was unsuccessful try again later". I've tried downloading the update for two weeks. Are there any recommendations?

If your problem persists get yourself a micro USB cable (sold separately), you can restore your Apple TV from iTunes:
Remove ALL cables from Apple TV. (if you don't you will not see Apple TV in the iTunes Source list)
Connect the micro USB cable to the Apple TV and to your computer.
Reconnect the power cable (only for Apple TV 3)
Open iTunes.
Select your Apple TV in the Devices list, and then click Restore.
(You may already have a micro USB cable if you have a camera or other digital device)

HT201413 I have a windows HP computer with windows 7 installed, when I try and update and restore my phone, I get an error message of there is not enough space on your computer to restore your phone. Any suggestions and help is appreciated.

I have a windows HP computer with windows 7 installed, when I try and update and restore my phone, I get an error message of there is not enough space on your computer to restore your phone. Any suggestions and help is appreciated.

You need to discard or save to an external disk and then discard some of the stuff we all tend to keep forever (movies, music, pictures, docs, apps no longer used, etc.). A clogged up disk also does not function ideally either.

HT2311 After updating itunes on my pc, I get the error message "MSVCR80.dll is missing." Reinstalling itunes does not help.

After updating itunes on my pc, I get the error message "MSVCR80.dll is missing." Reinstalling itunes does not help.

MSVCR is Microsoft Virtual Creator. It's an MS dirivitive of Java.
Try running Windows Update, and see: http://answers.microsoft.com/en-us/windows/forum/windows_vista-windows_programs/ msvcr80dll-problem/e5e1ae2f-f109-4bde-af20-ebcb7244fb5c
for more info.

When i attempt to update itunes i get error message, "errors occurred while installing the updates". What can i do to get the update?

I cannot download and install I-Tunes update. I get error message, "Errors occurred while installing the updates. Choose tools>Download Only". When I do this I get error message that says, "I Tunes has an invalid signature. The download has been removed." What can I do to get update?

Finally got a response from Apple. They suggested I uninstall Itunes, then download and install the latest version. Worked great and I was able to recover all of my purchases.

HT1926 Today 1/29/14 I attempted to update iTunes to the latest version - I got Error 7 (193) on W7 64 bit PC. I did everything to completely uninstall all apple folders on this site. I followed every step. I did this three times.

Apple is slowly loosing me as a valued customer. I attempted to update to the latest version of iTunes (11.1.4.62) for my desktop W7 service pack 1 64 bit PC. It would not upgrade it even told me that the install verson was incorrectly installed. Error 7 (193). Wow. An attempt to update the verson and the whole install is corrupt. I followed every step to uninstall iTunes and all the Apple directories. I installed it only to crash everytime. I repaired it. No improvement. I uninstalled it again as this support sight suggests. Still iTunes began "unresponsive" and closed. I reinstalled on another harddrive - no luck.
How is it Apple with all its glory and money can mess up a simple thing as an update? I, in good faith, do as Apple suggests and now I can't access my purchased content. I will voice my opinion and see if Apple will correct this ASAP for ask for all my money back - well over 40 movies, 2,000 songs and 300 music videos.

Hey I finally got an older vesion of itunes to work!!! 10.7 x64 for windows 7
After uninstalling all apple products even quicktime
I had to delete everything from (program files, and program files x64, program data,)
And all downloads from apple, and I went in to search deleted other stuff from apple, and itunes
But definently not my itunes library and Playlist
Down loaded 10.7 x64 for windows 7, but checked (do not start when done)
Then I emptied my recycling bin and restarted my PC
I ran geek tech tool box same as reg cure pro, also PC Tools registry cleaner, and CC Cleaner
Then I emptied my recycling bin and restarted my PC
And wallah... It finally works, and I Love the older version anyways.
Easier to download and transfer music!!!!!

When updating iTunes on my MAC, I get the error code (-42408)

When I try to open iTunes on my MAC it states I need to update. After updating, it closes and when I open again, I get the same updates. When I choose to not update, I get the error code (-42408). What can I do now?

What is your iTunes version? The error message indicates missing ressources or software conflicts.
Did you try to downgrade from iTunes version '11 to '10?

When I try to update ITunes to 11.2, I get error 2324 - any ideas to fix this?

I tried to update ITunes to 11.2 on a Windows 7 computer. It failed several times. I tried downloading only and installing manually and I get an error 2324 message. Any ideas on what this is and how to fix it? Right now, I can't open ITunes at all on my computer. Apparently, the update worked well enough to knock out the old installation.

Hello there, b1unky.
The following Knowledge Base article offers up some great, in-depth steps to follow when you have issues installing iTunes:
Issues installing iTunes or QuickTime for Windows
http://support.apple.com/kb/HT1926
Thanks for reaching out to Apple Support Communities.
Cheers,
Pedro.

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)

When I attempt to update my Adobe software I receive a U44M1P7 error

The U44M1P7 error indicates that the update was not able to be applied successfully. Please see Installation failed. Error U44M1P7 | Updates which discusses how to resolve this error.

I found a solution:
I have try all: Uninstall, reinstall, reboot, Clean... and nothing have worked until I have seen somebody saying this:
to fix this (on a PC)
1: open up the Creative Cloud control panel, and quit out.
2: Navigate to C:\Users\YOUR_USERNAME\AppData\Local\Adobe\AAMUpdater
3: Delete (or rename) the directory named "1.0"
4: restart Creative Cloud
5: Got to the App manager and update
I try that but didn't work. But finally a notice (in my case) in this directory (C:\Users\Bart Raven\AppData\Local\Adobe\AAMUpdater\1.0\Install\AdobeAfterEffects-13.0.0-Trial\13.0.2) I had a SETUP.ZIP file of the 13.0.2 update that was BROKEN and it didn't want to unzip. IT WAS A SETUP.ZIP file BROKEN.
THAT WAS THE PROBLEM!!
I download a new 13.0.2 update from this site:
All Adobe CC 2014 Updates: The Direct Download Links for Windows | ProDesignTools windows
All Adobe CC 2014 Updates: The Direct Download Links for Mac OS | ProDesignTools MAC
and put it unziped in the same directory: ((C:\Users\Bart Raven\AppData\Local\Adobe\AAMUpdater\1.0\Install\AdobeAfterEffects-13.0.0-Trial\13.0.2)
RUN IT, and finally everything works fine again!!
Then i put the last update from the Adobe Cretive Cloud.
SO, The problem is a broken SETUP.ZIP file update in some place in here: C:\Users\Bart Raven\AppData\Local\Adobe\AAMUpdater\1.0\Install - for WINDOWS.
Just replace it for a good one.
Hope this help
More info: Update Failed. Unable to extract the downloaded files. (U44M11210)

When trying to update iTunes to 11.1, I get an error that says, "unable to open URL"

Can anyone help with this?

Have a look at the thread:
https://discussions.apple.com/message/12622179#12622179
TG10987 has outlined a procedure, it helped in may case. After upgrading to iTunes 11.1.0.126 Apple SW destroyed internet accessibility (WLAN and LAN).
The procedure also works with Windows 8.

When I try to update to IOS 5, I keep getting the error -5000 when its backing up.

It also takes forever to sync my iphone whereas before it was very quick... Do I have an issue with my pc or my iphone??

Hi hunterridge,
If you are having an issue with updating your iPhone's operating system, I would suggest that you troubleshoot using the steps in this article -
Resolve iOS update and restore errors in iTunes - Apple Support
Thanks for using Apple Support Communities.
Best,
Brett L

HT5654 When attempting to open iTunes on my PC, I receive the error message: Runtime Error! R6034

When attempting to open iTunes on my PC, I get an error message: Runtime Error! R6034

See Troubleshooting issues with iTunes for Windows updates.
tt2

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

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