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

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I'm trying to download itunes 10.5 (windowsxp w/servicepack3) and i get "Itunes has an invalid signature.It will not be installed". Suggestions?

I'm trying to download Itunes 10.5 on myPC (WindowsXp w/service pack3) and I get the message "ITunes has an invalid signature.It will not be installed". Any suggestions?

For general advice see Troubleshooting issues with iTunes for Windows updates.
The steps in the second box are a guide to removing everything related to iTunes and then rebuilding it which is often a good starting point unless the symptoms indicate a more specific approach. Review the other boxes and the list of support documents further down page in case one of them applies.
Your library should be unaffected by these steps but there is backup and recovery advice elsewhere in the user tip.
tt2

HT201210 When I am trying to upgrade my iOS version I am getting an error message saying " the iPad software update server could not be contacted", I also get an error message prior to that which says the certification of the server is invalid

When I am trying to upgrade my iOS version I am getting an error message saying " the iPad software update server could not be contacted", I also get an error message prior to that which says the certification of the server is invalid?

Temporarily disable any security software on the computer and try again.

Error "itunes has an invalid signature". Will not install. Why?

Every time I try to update iTunes on my desktop computer I keep getting the same error message "iTunes has an invalid signature. Will not install. Why am I getting this message? and how can I fix it.
ITunes came with the new HP I purchased in 12/2013. I have had a problem only with updates. I thought about uninstalling on my desktop but do not want to lose my songs. Was hoping to find a better solution than uninstalling and then re-installing.
Any how would be appreciated.

The error suggests some sort of corruption with the file you downloaded. Clear your browser's cache and download a fresh copy of the iTunes setup file.
For general advice see Troubleshooting issues with iTunes for Windows updates.
The steps in the second box are a guide to removing everything related to iTunes and then rebuilding it which is often a good starting point unless the symptoms indicate a more specific approach. Review the other boxes and the list of support documents further down the page in case one of them applies.
Your library should be unaffected by these steps but there is backup and recovery advice elsewhere in the user tip.
If you are running 64-bit Windows and the above steps haven't helped try installing the version of iTunes that can be downloaded from this support document. iTunes 12.1 for Windows (64-bit — for older video cards)
tt2

ITunes 10.5 has an invalid signature, it will not install

I was trying to update my iphone 4 but it says a new itunes to 10.5 should be installed first. But when I hit the download itunes it says it has an invalid signature and will not be installed (These includes the shared files, Quick Time and Safari). Therefore, I can not update my iphone4. What should I do?

Please check this post out. I think you should be able to resolve your update process!
https://discussions.apple.com/message/22041796#22041796

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

I am trying to save a file in Acrobat and get an error message...

I am trying to save my Turbotax file in pdf form but every time I try, I get the following message: " An error occurred in the processing of your tax return in PDF format. Error: 4" Does anyone have any idea what is going on? I downloaded the most current form of Acrobat today. Thank you-Gail

schipperkefarms wrote:An error occurred in the processing of your tax return in PDF format. Error: 4"
That doesn't sound like an Acrobat error at all.
schipperkefarms wrote:
I downloaded the most current form of Acrobat today. Thank you-Gail
But are you using Acrobat to create the PDF (and are you sure it isn't Reader that you downloaded?)
If you are literally using the "save" function from Turbotax, chances are it isn't using Acrobat at all but it's own PDF generator. You would want to talk to the Turbotax folks.
If this is not the case, maybe you can give us some more specifics on exactly what steps you are taking to create the PDF.

Trying to use a external hard drive and getting a error message

My issue is with the Silicon Power H10 1TB Wifi drive. I got everything to link up but my Macbook wants to see it has a remote disc. So when i go to drop a File or movie on it i Get the message i need to Auth the remote Disc click here. When i do the box closes and nothing happens. I am new to IOS programming but I am good with windows.

Howdy pbfrost,
You should first check to make sure that your device is compatible with the iPad. See this article -
If you need help with iPhone, iPad, or iPod touch accessories - Apple Support
According to the Apple's store requirements for the Seagate Backup, it needs to be used with a computer. See this page -
Seagate 2TB Backup Plus Slim for Mac Portable Hard Drive - Apple Store (U.S.)
If you are trying to back up your iPad, you can use either iTunes while connected to a computer, or iCloud. See this article -
Back up and restore your iPhone, iPad, or iPod touch using iCloud or iTunes - Apple Support
Thanks for using Apple Support Communities.
Best,
Brett L

I have tried to download books to my kobo and get an error message that the document is not currently authorized to my adobe ID.

I have already contacted Kobo who told me to uninstall the ADE 4.0 and install the ADE 3.0. I've done this, and nothing. I've erased the authorization for the kobo that was still there, and authorized it again. Everything is authorized. I've even tried borrowing a second book and downloading. These books are showing in my ADE as being in the kobo. On my kobo ereader device, the icons for the book are black.

The Kobo and the ADE are authorized to the same Adobe ID. I have double checked everything.

How do I get iTunes back when I get the error message ; the application "I Tunes" unexpectedly quit while trying to restore it's windows. Do you want to restore it's windows?

how do I get ITunes back when I get the error message :
The application "ITunes" unexpectedly quit while trying to restore it's windows. Do you want to restore it's windows?
I already tried reloading ITunes and it still doesn't startup.

You didn't mention but are you still running a version of iPhoto older than iPhoto 11?
If yes, then go to the App Store and purchase the iP 11 app and install it. Back up your photo library first.
Once iP 11 is installed and has imported all your photos do a restart of the Mac.
This should resolve most issues with iTunes 10.6 and you should be able to run iTunes and sync up your iOS devices.

I am trying to open my iTunes on a Windows XP laptop and get the error message 42404 "iTunes application could not be opened. Please repair or reinstall QuickTime". I did that and it did not help. Any ideas?

I am trying to open my iTunes on a Windows XP laptop and get the error message 42404 "iTunes application could not be opened. Please repair or reinstall QuickTime". I did that and it did not help. Any ideas?

Let's see if a more rigorous uninstall/reinstall procedure gets us past that, nancy. See the following troubleshooting document:
Removing and Reinstalling iTunes, QuickTime, and other software components for Windows XP

ITunes is updated and works fine and I am able to log onto my account. When I go to purchase a song, I get the error message "Your Apple ID has been disabled". I've tried different methods: changing passwords, making a new account with another email addre

iTunes is updated and works fine and I am able to log onto my account. When I go to purchase a song, I get the error message "Your Apple ID has been disabled". I've tried different methods: changing passwords, making a new account with another email address, and emailing itunes tech support. I am curious as to how many others have been experiencing the same issue. When I googled the error, it seemed like it was happening extremely often with many people.
We all love their products, but they always come with a lot of issues and horrible customer support.
My apple Id is [email protected]

My Iphone 4 is telling me the same thing and I believe I figured out what the problem is. I had some fraudulent charges on my itunes account, so I call my bank and disputed the charges. Right after I did that, I started getting the message "Your apple ID has been disabled." I just realized today that the charges are not fraudulent, they are "in app purchases." One of my daughters downloaded the game Top Girl which is FREE, but in the game Top Girl you use money in the game to purchase things. It just so happens that the money you use to purchase things is real money MY Money!!!. My daughter thought she was using play money in the game and had no idea she was using real money. She spent $106.00 buying stuff. Now I have to call the bank and tell them to release the hold and pay Itunes. I'm hoping this solves the problem. Here is the link to learn how to disable "in app purchase" on your iphone or ipad.
http://www.ikidapps.com/2010/12/parents-avoid-accidental-app-purchases-how-to-tu rn-off-in-app-purchasing.html

I have tried to update my iPod Touch 4G to the latest update. After the 4 hours an error message appears saying iTunes had lost connection even when I am fully connected to the internet. I have repeated the update 4 times now with not luck. Any ideas?

I have tried to update my iPod Touch 4G to the latest update, I currently have iOS 4.1. After the 4 hours an error message appears saying iTunes had lost connection even when I am fully connected to the internet. I have repeated the update 4 times now with not luck. Any ideas?
Thanks in advance
Adam

If you get a network timed out error, try disabling the security software on the computer during the download and install.
You can also try a direct download andinstall by:
iPod, iPhone and iPad Firmware Download
Nera the top of the page aretheinstructions for selecing the download for the install.

Trying to download 10. itunes, however I keep getting this error message "An error occured during the assembly "Microsoft VC80.CRT, version =8.0.50727.4053",type ="win32",publickey Tokens="1fc8b3b9a1e18e3b",process orArchitecture="x86"

Hi,
I am trying to download the latest 10.0 itunes, however I keep getting this error message. I have a new iphone 4s so when I plugged it into the laptop it said i need to uninstall and reinstall the latest itunes.
I contacted support which they advised me to uninstall the itunes on my dell laptop, which I have done however I keep getting the same error message. "An error occured during the assembly "Microsoft VC80.CRT, version =8.0.50727.4053",type ="win32",publickey Tokens="1fc8b3b9a1e18e3b",process orArchitecture="x86". Please refer to help and support for more information. HRESULT: 0x800736FD.
Please can you advise on what best to do? The laptop is a 32bit windows 7.

HRESULT: 0x800736FD.
These ones are typically caused by underlying problems on the PC that also often cause Windows Updates to fail to install. If we can fix the Windows Update trouble, we can usually get the iTunes trouble cleaned up en passant.
Go into your Windows update and try to check for new updates. If updates install, stock up on the ones you're behind on, restarting the PC if requested to do so. After the restart, try installing iTunes again. Does it go through this time for you?
If windows updates fail to install, go into your Update History and doubleclick the failures. What alphanumeric codes appear for you? Are they also 800736fd, or some other number? (If they're another number, what number are you getting?)

Trying to Transfer iTunes to a New computer, but I get the error message The file "iTunes Library.itl" cannot be read because it was created by a newer version of iTunes --- HELP!

Trying to Transfer iTunes to a New computer, but I get the error message The file "iTunes Library.itl" cannot be read because it was created by a newer version of iTunes --- HELP

Did you downgrade iTunes? What version is listed in Help> About iTunes?
If you don't have iTunes 10.5.2, download it from here -> http://www.apple.com/itunes/download/
If you have iTunes 10.5.2, try re-creating your iTunes library.

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?

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