Previous 1 2 Next 15 Replies Latest reply: Feb 6, 2012 2:05 AM by chaosbreaker69
rico1gonz Level 1 (0 points)

I have the 64-bit version of Windows 7 and everytime I try updating to iTunes 10.5 I get this error message:


An error occurred during the installation of assembly 'Microsoft.VC80.CRT.type="1fc8b3b9a1e18e3b".processorArchitecture="x86"'.Please refer to Help and Support for more information.HRESULT:0x80070246.


I have no clue what that means. I've tried uninstalling my Apple software through the Control Panel, rebooting, and trying to download iTunes again but I keep getting the same error message.


Does anyone have any idea why I can't install iTunes 10.5? I would like to connect my iPhone 4S to my computer.



  • MickiD84 Level 1 (0 points)

    Itunes 10.5 has a lot of issues at the moment. I upgraded from 10.3 to 10.5 and have not been able to backup my iphone 4, sync or access itunes store since. Don't get too excited if you do manage to get it to install because it probably won't work properly anyway.

  • henryzw Level 1 (0 points)

    I agree. I have been attempting to update iTunes to 10.5 since it came out (must be about a week now) to no avail. So I've basically been in foul mood for a week

    I've been having the same problem with rico1gonz too.

    'Microsoft.VC80.CRT.type="1fc8b3b9a1e18e3b".processorArchitecture="x86"'.Please refer to Help and Support for more information.HRESULT:0x80070246.


    Apple has not addressed this issue as of yet and I'm beginning to become very annoyed.

  • Relapse666 Level 1 (0 points)

    I don't have the exact same error message as you guys, but I'm also not able to install iTunes 10.5. It happened last week when I tried to upgrade to the latest version to be able to run iOS5.

    I get errors about not being able to access registry keys.


  • waynesmery Level 1 (0 points)
  • rico1gonz Level 1 (0 points)

    Still unable to update iTunes. Is there an issue on Apple's end or is it my computer?

  • Viejo897 Level 1 (0 points)

    Don't get into a bug hurry to update to iOS5. I did with my ipad after installing the latest itunes on my Windows 7 computer. I now have a paper weight that is inoperable.  Apple store Genius Bar says they can not get my Ipad working again and wants to charge me $350 to replace it.  After explaining that it was Itunes that sugested I upgrade to iOS5, and Apples software fried my Ipad during the iOS5 update I suggestetd they pay for the replacement.  The best I was able to do was get them down to $100.  I refused but now what do I do?  I have an Ipad that will not restore.  

  • rico1gonz Level 1 (0 points)

    I have an iPhone 4S so I already have iOS 5, the problem is that my iPhone needs iTunes 10.5 not 10.4 to communicate with.

  • tkrause Level 1 (0 points)

    We have the same problem over here and investigated that the source of this problem is not the iTunes setup itself furthermore it's the setup of the Mobile Device drivers ("AppleMobileDeviceSupport64") that raises the provided error.


    Maybe someone could work on a solution with this information.


    We'll follow this thread...

  • tkrause Level 1 (0 points)

    Delete me.

  • fantm11 Level 1 (0 points)

    Slightly different error (0x80073712), but the same result. 


    Where's the "help" on these help forums?

  • hweechee Level 1 (0 points)

    I am using Window Vista 32bit and have the same problem. After trying uninstall, reinstall, ccclean registry, over and over again and still cannot install itune 10.5. And finally concluded that this might be a registry corruption problem. The following steps is what I did to fix the registry isssue and get my itune 10.5 installed.


    - Run Window update - and check the history file, if you see some failures in previous updates, there is something wrong with the registry.

    - un-install all the apple related software (itune, safari, boujour, apple update, etc).

    - For Vista 32bit, go to the following link and run the script to clean up the registry. I am not sure if other WIndow OS will work or not.

    - run the Fix-it script. you have to select the Agressive mode (even thou the pop up window advise not to do this)  in order to clean up the registry. When I try without checking the box, and it did not fix the problem.

    - reboot PC

    - Run window update. It will discover a lot of old updates that need to be installed (I suspect that the fix it script delete a lot of stuff in the registry and removed previous updates). I got 53 updates that need to install.

    - run the update and wait for a longtime (mine took ~2 hours).

    - reboot PC

    - run cccleaner

    - reboot PC

    - install itune 10.5



    Now it works. Hopefully other window OS has similar step to fix this. I can only say it works for me using window Vista 32bit. and so far, my PC works correctly.

  • JeffFromEastBay Level 1 (0 points)

    I keep getting error messages that iTunes can't install because of permissions.  I'm logged in as administrator, and when I go to the registry location, I can see that I have full permission!  If I try to make any changes there, though, I get a message that I can't make them.  This is on Windows 7.  I have to say I've had a miserable time updating iTunes as long as I've had it on a computer.  I wish they'd get it right!

  • rebecca1188 Level 1 (0 points)

    Im having a simular issue



    Brand new laptop and trying to install


    Its driving me nuts and putting me in a real bad mood



  • erwinoliva Level 1 (0 points)

    do you also have issues downloading it? this process is just too frustrating. tried different laptops, but download is getting interrtupted????!

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