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

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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

My iPad 2 has lost the iTune connection. WiFi is operating. I've rebooted. A book I've tried to download is stuck u. 'Uploading' mode and I get a message that says that I am not connected to iTunes. I have IOS3..should I update to IOS6?

Lost connection to iTunes. I've rebooted, wiFi is fine. IBooks won't finish uploading. Should I upgrade to IOS6 or is this even a problem. Should I resync with my windows? Sigh...I am so lame.

Are you using the latest version of iTunes (11.0.2) on your computer?
If not, get it at:
http://www.apple.com/itunes

I'm trying to download an app from the App Store and I get a message the my Apple ID can't be used in iTunes and to try another. Never happened before. Any ideas?

I'm trying to download an app from the App Store and I get a message the my Apple ID can't be used in iTunes and to try another. Never happened before. Any ideas?

Someone else said Apple's servers are having problems tonight. Just try again later.

Installed itunes update 10.5.0.142 and now get the error message "Disc Burner or Software Not Found" when trying to burn playlist to disc.

Installed itunes update 10.5.0.142 and now get the error message "Disc Burner or Software Not Found" when trying to burn playlist to disc. Windows 7

Hello queenabs,
It sounds like you are trying to burn a playlist to a disc in iTunes, but you are getting the error, "disc burner or software not found." I found a couple of resources that I think might help with an error like this.
I recommend starting with the steps in this article:
iTunes for Windows: Optical drive is no longer recognized, or "Disc burner or software not found" alert after install
http://support.apple.com/kb/TS2308
If you are still having trouble with burning a disc after following the steps in that article, I recommend following the steps in this article:
iTunes for Windows: Additional troubleshooting tips for burning issues
http://support.apple.com/kb/TS1374
Thank you for using Apple Support Communities.
Best,
Sheila M.

I have tried to view videos created in premiere elements 10 and I get the following message: "this file type is not supported, or the required codec is not installed. When it opens there is a red screen in the monitor panel with Korean writing which als

I have tried to view videos created in premiere elements 10 and I get the following message: "this file type is not supported, or the required codec is not installed. When it opens there is a red screen in the monitor panel with Korean writing which also appears in the place of each clip in the video. I tried uninstalling and reinstalling premiere elements 10, but that did not have any effect on the video. Do you have any suggestions? I researched codec, but do not understand them at all.

gloucester
In case you did not find it, the following is a copy/paste of the Announcement on Premiere Elements 19/NVIDIA GeForce
that appears at the top of this forum.
Premiere Elements 10 NVIDIA Video Card Driver Roll Back
If you are a Premiere Elements 10 user whose Windows computer uses a NVIDIA GeForce video card and you are experiencing
Premiere Elements 10 display and/or unexplained program behavior, then your first line of troubleshooting needs to be rolling
back the video card driver version instead of assuring that it is up to date.
Since October 2013 to the present, there have been a growing number of reports about display and unexplained workflow
glitches specific to the Premiere Elements 10 user whose Windows computer has a NVIDIA GeForce video card. If this applies
to you, then the “user to user” remedy is to roll back the NVIDIA GeForce video card driver as far as is necessary to get rid of
the problems. The typical driver roll back has gone back as far as March – July 2013 in order to get a working Premiere
Elements 10. Neither NVIDIA nor Adobe has taken any corrective action in this regard to date, and none is expected moving forward.
Since October 2013, the following thread has tried to keep up with the Premiere Elements 10 NVIDIA reports
http://forums.adobe.com/thread/1317675
Older NVIDIA GeForce drivers can be found
http://www.nvidia.com/Download/Find.aspx?lang=en-us
A February 2014 overview of the situation as well as how to use the older NVIDIA GeForce drivers for the driver roll back can be found
http://atr935.blogspot.com/2014/02/pe10-nvidia-video-card-roll-back.html
ATR

HT4993 i am trying to install msnbc app from the app store and keep getting an error message. The app will not install. What can i do?

i am trying to install msnbc app from the app store and keep getting an error message. The app will not install. What can i do?

This is asked and answered many times each day. The forum search bar is on the right side of this page.
Disable your firewall/security software and try again.

Icloud is not backing up on my Ipad and Iphone. i also tried conneting to the computer to back it up and i get the following error message back up could not be completed beacause a session could not be started. also photo stream is not updating either.

icloud is not backing up on my Ipad and Iphone. i also tried conneting to the computer to back it up and i get the following error message back up could not be completed beacause a session could not be started. also photo stream is not updating either on both devices

Curretly, there is an iCloud blackout. It started this morning around 2AM California time (Pacific), 5AM New York (Eastern). A lot of people have been having issues all day, including me. No iCloud services are online. Even Find My iPhone is down.

HT203167 I am trying to download a digital copy to i-tunes and keep getting an error message that says the disk I am attempting to use is full. What does that mean

I am trying to download a digital copy to i-tunes, but keep getting an error message stating that the disc I am attempting to use is full. What does that mean???

Hi, reagans3.
Thank you for visiting Apple Support Communities.
I see you are experiencing issues with iMessage. I am not sure what troubleshooting steps that you have processed; however, there are some additional steps in the article below that may help.
iOS: Troubleshooting Messages
http://support.apple.com/kb/ts2755
Cheers,
Jason H.

I am trying to download photos to mac from iphone 4s and keep getting message (unreadable files:315) which I say (OK). Then it throws me out of downloading. What can I do to get my photos downloaded to Mac?

Trying to download photos from iphone 4S to a MacBook Pro. The process keeps getting interrupted/stopped with a notice (unreadable files:315). When I click (OK), thinking it will download all other photos other than the 315, it stops downloading. I did this thru Image Capture and also Import Photos in iPhotos. Both did not work. What can I do?

Try:
- Try another cable.
- Try another USB port
- Inspect the dock connector on the iPod for bent or missing contacts, foreign material, corroded contacts, broken, missing or cracked plastic.
If still problem then it appears the photo files on the iPod are corrupted or you have a hardware problem with the iPod

HT204074 I have an iphone 4. I upgraded to ISO6. All well until Monday. I was updating 2 Apps over Wifi which froze. I tried to do the soft reset and now my phone has frozen totally. It will not go passed the Apple icon sign on start up. I drained the bat

I have an iphone 4 and upgraded to ISO6. aLL WAS WELL UNTIL mONDAY WHEN i WAS UPDATING 2 aPPS AND MY PHONE FROZE. i TRIED SOFT RESET AND THEN MY PHONE HAS NOW FROZEN ON THE aPPLE icon and I cannot go further. I cannot sync to pc as my phone is not recognised. Hlep!

Hi, beth.lau.gr.
Thank you for visiting Apple Support Communities.
I understand you have been experiencing issues with your iPhone restarting and showing you a blue screen. I wont be able to give you an exact answer as to why this is happening. However, this is the most relevant troubleshooting article for this issue. This article also provides options to reach out to us via phone for additional assistance.
If your iOS device restarts, displays the Apple logo, or powers off while you're using it
http://support.apple.com/en-us/HT203899
Cheers,
Jason H.

8.2.1 error message "iTunes + Quicktime" has an invalid signature.

I am getting this error message when I am trying to download & install the 8.2.1 update. The entire message states "iTunes + Quicktime" has an invalid signature, it will not be installed. I saw another post started by Cfrolich, but it doesn't look like they got the problem fixed. Has anyone had this same error message? Can anyone help??

I have not had this problem before but the latest update to iTunes + Quicktime, offered today, puts me in the same situation.
The web is covered with reports of this issue over the years, always "iTunes + Quicktime has an invalid signature", but nothing I can see which is a good fix for the problem.
Tried chkdisk, install manually doesn't work, the installer just keeps trying.
Tried installing QT 7.6.4 independently from the Apple download page, that didn't help either.
If this is so prevalent, why isn't there more on the main Apple site about it?

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?

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?

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