Itunes insall error for windows 7

when trying to update to the latest version of iTunes via the apple software update, i keep getting the error message:
"iTunes" has an invalid signature and will not install.
What can I do?
And if I have to reinstall the program from the apple website, will it cause me to lose all my saved files?
Any help or advice is much appreciated.

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 or iTunes64Setup.exe to install.
iTunes library and media folders are stored at a different location and therefore any new or re-installation will not affect your files. However, it is vital to backup these folders to incase of mishaps.
ITunes library folder locations for Windows 7:
C: \Users\username\My Music\iTunes

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TS3212 ITUNES download error for windows 8

After I install itunes an error message pops up saying apple application support was not found. I have uninstalled and re installed 5 times and still the same message pops up. Is there anyone else who has this problem?

Let's try a standalone Apple Application Support install. It still might not install, but fingers crossed any error messages will give us a better idea of the underlying cause of the issue.
Download and save a copy of the iTunesSetup.exe (or iTunes64setup.exe) installer file to your hard drive:
http://www.apple.com/itunes/download/
Download and install the free trial version of WinRAR:
http://www.rarlab.com/
Right-click the iTunesSetup.exe (or iTunes64Setup.exe), and select "Extract to iTunesSetup" (or "Extract to iTunes64Setup"). WinRAR will expand the contents of the file into a folder called "iTunesSetup" (or "iTunes64Setup").
Go into the folder and doubleclick the AppleApplicationSupport.msi to do a standalone AAS install.
Does it install properly for you?
If instead you get an error message during the install, let us know what it says. (Precise text, please.)

ITunes install error for windows! How do I fix?

When I try to install itunes I get the following error:
Error 1406. Could not write value to key \Software\Classes\.cdda\OpenWithList\iTunes.exe. Verify that you have sufficient access to that key or contact your support personnel.
How do I fix this problem.
Thanks!

You may have a problem with your registry permissions.
Sometimes creating another administrator account and installing from there may work around this.
Apple have this article on the registry key mentioned in your error:
http://support.apple.com/kb/TS2294?viewlocale=en_US
Otherwise try method 3 in this article:
http://support.microsoft.com/kb/949377/en-us
It is quite complicated to do, so follow the method carefully, the script can take quite a long time to run so be patient with it.
Message was edited by: polydorus

Trying to install iTunes 12.1 for Windows 8.1 (64-bit) and get Itunes error HRESULT: 0x800736B3

Hello,
I am Trying to install iTunes 12.1 for Windows 8.1 (64-bit) and I get an Itunes window with an error that says:
An error occurred during the installation of assembly 'Microsoft.VC80.CRT,type="win32",version'8.0.50727.6195",publicKeyToken="1fc8b3 b9a1e18e3b"processorArchitecture="amd64". Please refer to help and Support for more information.HRESULT: 0x800736B3
I already:
- Uninstalled all old Itunes versions.
- Tried a clean reboot to install the new version,
- Installed the security update’ Microsoft Visual C++ 2005 Service Pack 1 Redistributable Package ATL Security Update’
But I still get the same error.
Can someone help?
Thanks!

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 still have trouble you might consider installing the alternate version iTunes 12.1 for Windows (64-bit — for older video cards) where you can download a 64-bit installer for the 32-bit version of iTunes that works with older video cards. This version may also be useful for anyone who is unable to get the 64-bit version of Apple Application Support to install when using the itunes6464setup file, or has trouble with playback of certain video files despite having QuickTime installed.
tt2

ITunes 10.5 for windows vista 64 bits - error

I've been trying to install itunes 10.5 since december and even after the newer versions were out i've been having the same problem.
An error occur:
An error occurred during installation of assembly
'Microsoft.VC80.CRT type="Win32",version="8.0.50727.6195",publicKeyToken="1fc8b3b9a1e18e3b",process
orArchitecture='x86'. Please refer to Help and
Support for more information. HRESULT: 0x80070002
Then I have to cancel it. Then shows: iTunes was not installed correctly. Please reinstall iTunes. Error 7 (Windows error 127).
I was told to scan the PC, uninstall and reinstall all apple programs, or uninstall from the highest version to the lowest version and reinstall in chronological order.
But no version of itunes 10.5 works. Not even the newest version at: http://support.apple.com/kb/DL1427?viewlocale=pt_BR works.
Only the 10.4 version I had before can work, and now my iphone has iOS 5.0 and i cant use my itunes.
Any new ideas?

Its a Issue with your C++ Library on your computer, a way to fix it is to Rebuild your entire C++ Library from uninstalling the highest version to the lowest verision and reinstalling them back in chronological order..
I would suggest to contact apple support, request a Senior advisor they should be able to get that squared away, now if your not in phone support period you will probably have to pay for support.
I'd suggest the apple care if you havent got it yet

ITunes Installation Error 7 (Windows Error 126) for Windows 8

I attempted to reinstall iTunes on my PC, and now iTunes won't run. I tried uninstalling and reinstalling the program again but get the same error messages: "The program can't start because MSVCR80.dll is missing from your computer" and "iTunes was not installed correctly. Please reinstall iTunes. Error 7 (Windows Error 126)”. Any suggestions? I have Windows 8.

See Troubleshooting issues with iTunes for Windows updates.
tt2

ITunes Error 7 (Windows error 127) after installing iTunes 64-bit for Windows

After installing iTunes 64-bit for Windows (latest build), I get an error pop-up saying:
iTunes was not installed correctly. Please reinstall iTunes
Error 7 (Windows error 127)
I've gone thru the uninstall, reboot and reinstall process three or four times now. Still nothing.
Furthermore, after clicking okay to the error, it continues to pop up on it's own every 45 seconds or so.
There was one other error I came across after trying to launch iTunes after installation.
See both error messages here:
http://screencast.com/t/DSg4PpKF5BeX

Brilliant. Thanks a lot. I've wasted a couple of hours on this nasty bug, & trying all the other suggestions across various threads again and again.
I now find I had the same registry entry hanging on, despite uninstalling & wiping everything again and again. Having now deleted this key, (I don't even have an iPod), & iTunes 11.1.14 now opens at long last.
But WHY is this bug not fixed? Enough people are suffering with this across the forum. WHERE is Apple support on this?
It should have been added to their page at
http://support.apple.com/kb/HT1923
by now, why hasn't it???
It's not good enough!
Re:
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\SharedDlls]
"C:\\Program Files\\iPod\\bin\\iPodService.exe"=dword:80000000
AHA! This entry for iPodService.exe still exhisted. So I had no folders on the PC, no installs on the PC and no services running.... BUT this was still in the Registry.
Step 5 - Delete only the Registry entry above. NO REBOOT
Step 6 - Reinstall iTunes64.exe

ITunes download problem for Windows 7 and errors

I’m running Windows 7 32-bit. When I try to download iTunes, I keep gettingan error messages.
This is the error message that I get when I try to download:
            An error occurredduring the installation of assembly “Microsoft. VC80. CRT. Type = “win32”. Version= “8.0.50727.6195”. public KeyToken = “1cf8b3b9a1e18e3b”. processorArchitecture= “x86””. Please refer to Help andSupport for more information HRESULT: 0x8007054F
Here is another error message that I get:
iTunes.exe Entry Point Not Found
            Theprocedure entry point KCMByterStreamNotification_AvailiableLengthChanged couldnot be located in the dynamic link library CoreMedia.dll.
Here is a third error message that I get:
            iTunes wasnot installed correctly. Pleasereinstall iTunes. Error 7 (Windows errer127)

Same problem. I think it's related to a problem with the Visual C++ 2005 Redistributable package.
What version do you guys have instaled of the Visual C++ 2005 Redist?
If you go into control panel, uninstall a program. Go down to Microsoft, you should see it
mine says 8.0.50727.4053
The error seems to mention .6195
Does any one have any idea what that means?
i'm pretty sure if i uninstall the 2005 Redistrib, i won't be able to reinstall it. That's my curret situation with the 2008 package so i'm afraid to uninstall the 2005 although it's not helping me by leaving it...

Did latest update for itunes and now can't open Itunes. Get pop of :itunes was not installed correctly.Please reinstall itunes. Error 7 (Windows Error 126). Have reinstalled various times and still can't open itunes. Please help.

Did latest update for itunes and now can't open Itunes. Get pop of :itunes was not installed correctly.Please reinstall itunes. Error 7 (Windows Error 126). Have reinstalled various times and still can't open itunes. Please help.

Repair Apple Application Support.
START/CONTROL PANEL/PROGRAMS N FEATURES/highlight APPLE APPLICATION SUPPORT, then click the REPAIR button

Service 'Apple Mobile Device' (Apple Mobile Device) failed to start. Verify that you have sufficient privileges to start system services. and 'iTunes was not installed correctly. Please reinstall iTunes. Error 7 (Windows error 193)

Hi!
So i think i closed the wrong service at some point a few weeks back (apple mobile device) but iTunes remained working after that for another week. I then updated iTunes and i get the same "Service ‘Apple Mobile Device’ (Apple Mobile Device) failed to start. Verify that you have sufficient privileges to start system services." every time. If i click ignore, just so i can access iTunes with out syncing my iPod (touch 2nd gen) i then get 'iTunes was not installed correctly. Please re-install iTunes. Error 7 (Windows error 193)" when it has all installed. I don't understand what the problem is anymore as I have looked at other questions on the apple website, carried out the advice and it hasn't work. Any of them.
Tings I have done:
- Wiped all iTunes and Apple data from my computer (if you search for 'iTunes' or 'Apple' nothing comes up apart from applets from system code.
- Attached iPod before iTunes install and updated drivers.
- Installed iTunes as 'Run as administrator'
- Uninstalled and re-installed the software nearly 20 times now and rebooted the computer in between everytime.
Please someone help because i really need to get music on my ipod and i enjoy the ease of use of iTunes compared to spotify or Windows Media Player.

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.
The further information area has direct links to the current and recent builds in case you have problems downloading, need to revert to an older version or want to try the iTunes for Windows (64-bit - for older video cards) release as a workaround for performance issues or compatibility with QuickTime or third party software.
Your library should be unaffected by these steps but there are also links to backup and recovery advice should it be needed.
Regarding AMDS failures there is a hint in another thread that disabling the Windows Firewall before attempting to reinstall may help, otherwise take a look at the steps outlined in this post. Re: Can't install iTunes 12.1 on Windows 7 64-bit. I know they look a little daunting, but the process of generating the logs themselves isn't that hard to do. Extracting useful information from them is still a challenge but maybe something will leap out. If you want to post the log for the failed components for me to have a look at here or in the other thread please edit out any personal information, particularly your email address, first.
tt2

1080p download and playback bugs in iTunes 10.6 for Windows

There seems to be some bugs in iTunes 10.6 for Windows related to 1080p video. According to Apple, the minimum specs for viewing 1080p video on a PC is:
To play 1080p HD video on a PC, you need a 2.4GHz Intel Core 2 Duo or faster processor, 2GB of RAM, and an Intel GMA X4500HD, ATI Radeon HD, or NVIDIA GeForce 8300 GS or better graphics processor.
My PC exceeds these specs (Intel i5-2500K 3.3GHz CPU, 8GB of RAM, AMD Radeon 7970 video card, 30" Apple Cinema Display). The first bug appears when I go into the preferences setting and switch the download preference fom 720p to 1080p, which triggers a warning box that says:
This computer may not be able to play 1080p videos. You can still download these videos for use on other devices.
That's odd but I press "OK" and downloaded the 1080p copy of a TV episode. When I press play, another warning box popped up:
Video is too large. The 1080p version of [show] is too large to play on this computer. You can choose to play a smaller 720p version of this movie below. This message will be dismissed in XX seconds.
The message gives you three options: PLAY SMALLER VERSION / OK / CANCEL. If I select OK or simply let the timer run down, the 1080p video starts playing without any problems. Anyone else seeing this?

Oh that clarifies things, I see what you mean. The error message still confuses me because even your smaller Acer monitor matches the pixel resolution of the 1080p video - the video doesn't exceed the monitor's pixel ratio so it's not technically "too large" as the error message says. The 1080p video should fill your Acer monitor edge to edge while leaving black borders on the top and bottom of your Samsung. I think this is clearly a bug in iTunes.
I know what you mean about the movie opening up so that a portion of the image is off the screen but that sounds like an issue related to the default position of the window when you start a video. The default position is such that a smaller size like the SD copy probably isn't cut off but that a larger video does get chopped until you change where videos open by default. I can change the position simply closing the video while it's playing. iTunes remembers the place on the screen where I closed the video and opens all videos at the spot afterwards. Does that not work for you?

Entry point not found - iTunes 10.7 for Windows (64-bit) reinstall

After ignoring iTunes update prompts for about 2 years, I recently tried updating to the latest version (12.1) without success. After searching for solutions to this problem online, I decided to uninstall iTunes and try reverting back to iTunes 10.7 for Windows 64-bit (on my Windows Vista laptop).
At this point I have installed, repaired, uninstalled, reinstalled, and repaired the 10.7 version and am still unable to access iTunes. When I try to launch iTunes, I get the following error messages:
"iTunes.exe - Entry Point Not Found
The procedure entry point CMTimeRangeMakeFromDictionary could not be located in the dynamic link library CoreMedia.dll."
When I click OK, I then get:
"iTunes was not installed correctly. Please reinstall iTunes.
Error 7 (Windows error 127)"
(As I stated above, reinstalling hasn't worked!)
In my online troubleshooting searches, I've found posts regarding entry point issues but none with "CMTimeRangeMakeFromDictionary" or "CoreMedia.dll" in them. I'm unsure what to do next (should I attempt iTunes 12.1 again?), and my biggest concern is that I will somehow lose all my music. Any help would be greatly appreciated! Thank you

Entry point errors can often be fixed by deleting the offending dll, then repairing the component it is part of. CoreMedia.dll is part of Apple Application Support.
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 the advice above doesn't resolve things you could try this alternate version:
iTunes 12.1.0.71 for Windows (64-bit - for older video cards) - itunes64setup.exe (2015-01-28)
which is a 64-bit installer for the 32-bit version of the core application, similar to previous 64-bit releases.
Or roll back to the previous build:
iTunes 12.0.1.26 for Windows (32-bit) - iTunesSetup.exe (2014-10-16)
iTunes 12.0.1.26 for Windows (64-bit) - iTunes64Setup.exe (2014-10-16)
tt2

When attempting install of iTunes 10.5 for Windows 7 on Parallels 7, I get a message saying, "A program required to install cannot be run. Contact the package vendor or sys admin" (that's me). I completely uninstalled the previous iTunes prior to this.

When attempting install of iTunes 10.5 for Windows 7 on Parallels 7, I get a message saying, "A program required to install cannot be run. Contact the package vendor or sys admin" (that's me). I completely uninstalled the previous iTunes prior to this. Any thoughts?

Try the following user tip:
"There is a problem with this Windows Installer package ..." error messages when installing iTunes for Windows

ITunes update error 7 (windows error 1114) on Windows Vista Home Premium SP2

I have been trying to update iTunes for the past month. I admit that I had not been keeping up with the updates for about a year but now that I want to update it, I am getting an error.
Computer: hp Pavilion dv6700 Notebook PC, Intel Core2 CPU T8100 at 2.10 GHz
OS: Windows Vista Home Premium, Service Pack 2
iTunes update error 7 (Windows error 1114)
error message from Windows:
Runtime Error!
Program: C:\Program Files\iTunes\iTunes.exe
R6034 Application has made an attempt to load the C Runtime Library incorrectly. Please contact applications support (that is Apples iTunes) team for information.
I am also getting C Runtime Library error message about once a day since I tried to update iTunes.
What do I do?

See Troubleshooting issues with iTunes for Windows updates.
tt2

HT1926 iTunes will not install on my computer (Windows 8) and i tried everything in "Issues installing iTunes or QuickTime for Windows" but nothing worked. any help?

iTunes will not install on my computer (Windows 8) and i tried everything in "Issues installing iTunes or QuickTime for Windows" but nothing worked. any help?

Many thanks.
Error 7 (Windows error 127)
Try the following user tip:
Troubleshooting issues with iTunes for Windows updates

Itunes insall error for windows 7

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