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

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Here's a fix for "This item cannot be updated because it has been changed by another user or process"

https://gallery.technet.microsoft.com/System-Center-Service-fca7af29
A few months ago on the Technet Gallery, I submitted this custom control to be used on SCSM console forms. The purpose of the control is to eliminate the "This item cannot be updated because it has been changed by another user or process" error
message that we all have seen at least once (a day :) ).
The details are in the gallery description (along with installation instructions for existing forms and your own custom forms).
Here's a "short" description (nothing I ever post here is short :) ): This is a custom control that can be applied to an SCSM form like the Service Request form or Windows Computer form or your own custom form built with the authoring tool or Visual
Studio. When you click "OK" or "Apply" on the form, this control scans the form and Service Manager's database for any changes to the object you have open. If a property that _you_ have changed on the form was _also_ changed in the CMDB
(by a workflow or another user), this control will present a dialog box letting you know what happened. It will also let you choose which value to keep (yours, theirs, or the original value).
Just as importantly (and important in a greater percentage of cases), if a workflow changes a "background" property (like FirstAssignedDate) while you have the form open and you click OK, the control will detect the change and allow the form submission
to go through while keeping your changes and the FirstAssignedDate change that the workflow made. You won't get an error message or even a warning. And most importantly, you won't lose your changes.
That's where the "optimistic" part of the control's name comes from. It applies optimistic concurrency control to SCSM forms, while also providing an anti-collision interface for you to use so you no longer lose any of your changes.
Furthermore, this control will work on related items that are opened in memory; for example, the activities on a Service Request. So if you change an activity's title while the workflow engine sets it in progress, you won't get an error. The activity will
be in progress and will get your new title when you click OK or Apply.
Lastly, (and I admit this part is getting into the deep inner workings of console forms) if your form loads a sub projection at run time (to the root object) this control will detect the load and treat that sub projection as if it were apart of the original
form all along.
I've gotten a little feedback about this control, but I'd like to get more since it's a work in progress. So, I'm announcing it here on the forums. Please give it a try and let me know if you have any questions. I'll be happy to answer them here. Thanks,
folks!
Oh, and to answer the most common question right away: It's free. There is no paid version or anything like that. This is something I built for the SCSM community.

Great job!
Will definitely try it out.
Best regards,
Marcus

"Apple Software Update for Windows" has an invalid signature & will not ...

I am trying to update my iTunes on my PC and I keep getting this message after I click the button to install the update...
"Apple Software Update for Windows" has an invalid signature and will not install
Anyone has a solution for this??? Any help would be greatly appreciated...oh and by the way, my iPod is not connected when I am trying to update.
Thanks

I am trying to update my iTunes on my PC and I keep getting this message after I click the button to install the update ... "Apple Software Update for Windows" has an invalid signature and will not install
Okay. Rather than using Apple Software Update, let's try updating your iTunes using an installer downloaded from the following location:
Latest iTunes Installer
Does the install using the iTunesSetup.exe from there go through any better? If not, what error message do you get from that?

"Apple Software Update for Windows" has an invalid signature.

Hi. Iam trying to update from iTunes 7.3.2.6 to iTunes 7.6.2 but always get this message: "Apple Software Update for Windows" has an invalid signature. It will not be installed. Can anybody help me wth this?

always get this message: "Apple Software Update for Windows" has an invalid signature. It will not be installed.
There is a problem on some XP machines where Apple Software Update for Windows version 2.0.0.21 will always return an invalid signature message when trying to update to ASU 2.1.0.110. Since it tries to do that prior to updating other software, the update of the other software is blocked. (To check what version of ASU you have, launch ASU by going "Start > All Programs > Apple Software Update", and then in ASU go "Help > About Apple Software Update".)
The way around that issue (if that's what you've got) is to update itunes using the link to the iTunes installer that Jefe gave you in his/her post. That iTunes installer will also update your ASU to at least ASU version 2.0.2.92 which should then be able to successfully update itself to ASU 2.1.0.110 next time you run ASU.

ITunes 10.4 won't download because it has an invalid signature

iTunes 10.4 won't download because it has an invalid signature

That typically indicates that the installer is getting damaged during the download, linda.
What browser did you use to download the installer? If you were using IE, can you get a working installer if you use Firefox instead (or vice versa)?

TS1717 How can I update my iTunes when it says that apple has an invalid signature

How can I update my iTunes on my pc when it says that apple has an invalid signature

How can I update my iTunes on my pc when it says that apple has an invalid signature

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 cannot update iTunes because when I run the Apple Software Updater, it says "'iTunes QuickTime' has an invalid signature. It will not be installed." If I try downloading only it says "'iTunes cannot update. Invalid signature.

I cannot update iTunes because when I run the Apple Software Updater, it says "'iTunes + QuickTime' has an invalid signature. It will not be installed." If I try downloading only it says "'iTunes cannot update. Invalid signature. Can someone help?

This forum is for questions from those managing sites on iTunes U, Apple's service for colleges and universities to post educational material in the iTunes Store. You'll be most likely to get help with this issue if you ask in the general iTunes for Windows forums.
Regards.

I have an ipod touch 2nd generation, i'm trying to get apps that will work and i cant find any. Its says i need an update because it has ios 3.1.3 , but on itunes it says there is no update ? what apps can i get??

i have an ipod touch 2nd generation, i'm trying to get apps that will work and i cant find any. Its says i need an update because it has ios 3.1.3 , but on itunes it says there is no update ? what apps can i get??

Sounds like you actually have a 1st generation as those cannot update beyond iOS 3.1.3.
Model Identifier Utility
rachelfromnorthumberland wrote:
what apps can i get??
Finding iOS Apps Compatible with Older Devices

"cannot be updated because Itunes selected no longer exist"

Hello. When I hooked up my Ipod for the first time it sucked up the 800+ MP3 files from My Music folder. Now I want to update my library and delete them all from the Ipod (not my hard drive) and start over with songs from the Itunes folder.
I unchecked all of the songs in the library and reconnected, but it will not delete them and I get this error message:
"Cannot be updated because one or more of the Itunes playlists selected to update no longer exist"
I'm thinking I need to "reboot" the Ipod and clear out the memory but I don't know how. Or somehow figure out how to get around this error. Can anyone help???
Thanks!

Have a look at this.
http://discussions.apple.com/thread.jspa?threadID=121728&tstart=150

When i try to do a software update, it finishes and then says that the update cannot be saved because it has probably been corrupted during the download. This has happened a number of times and i do not know why, any help?

When i try to do a software update, it finishes and then says that the update cannot be saved because it has probably been corrupted during the download. This has happened a number of times and i do not know why, any help?

asifmanzoor wrote:
i have 10.7.2, this download is 10.7.5
Are you Downloading it from here > http://support.apple.com/kb/dl1582
asifmanzoor wrote:
yes, i am using wifi
1) Turn your Wi-Fi router OFF... wait 30 seconds... Turn it back ON.
OR...
Do not use Wi-Fi and connect Directly to your Internet via ethernet cable.

I try to sync my iphone in itunes and get this message ipod cannot be updated because the required file could not be found I have deleted ituned and all folders to no avail

Can anyone fix this? ipod cannot be updated because the required file could not be found
I've deleted itunes and reinstalled but it does not work Also I noticed in events in photos in itunes my files have duplicatedn secveral times how od I clear them to just one set?

Delete the iPod Photo Cache folder. Its location can be found here:
iTunes: Photo sync creates iPod Photo Cache folder

HT1386 I am trying to download ios 5.1.1 on my iphone from itunes and i get an error message that my iphone cannot be updated because the filmware is not compatible? What do I do?

I am trying to download ios 5.1.1 on my iphone from itunes and i get an error message that my iphone cannot be updated because the filmware is not compatible? What do I do?

iOS 5 is only compatible with the iPhone 3Gs and later...
Updating to iOS 5 http://support.apple.com/kb/HT4972

My itunes cannot be update on my windows xp. so i delete my itunes and install new, but now i got new problems, it says "The file itune.library.itl cannot be read because it was created by newer version of itunes." so how can it be solved?

my itunes cannot be update on my windows xp. so i delete my itunes and install new, but now i got new problems, it says "The file itune.library.itl cannot be read because it was created by newer version of itunes." so how can it be solved?

Hello Bebyida,
Thanks for using Apple Support Communities.
For more information on this, take a look at:
http://www.apple.com/itunes/download/
Best of luck,
Mario

I am getting the error message "Itunes library cannot be opened because it has been created by a newer version of itunes." HELP!

I am getting the message "Itunes cannot be opened because it was created by a newer version of Itunes." HELP!

The file "iTunes Library.itl" cannot be read because it was created by a newer version of iTunes".
Try the following user tip:
Empty/corrupt iTunes library after upgrade/crash

Itunes cannot be updated because it has an invalid signature

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