penelope184

Q: iTunes install errors: MSVCR80.dll and Error 7 (windows error 126)

All of a sudden my iTunes stopped working, and I get the following error messages:

 

1. the program can't start because MSVCR80.dll is missing from your computer. Try reinstalling the program to fix this problem

 

and

 

2. iTunes was not installed correctly. Please reinstall iTunes. Error 7 (Windows error 126).

 

Now I've checked the forums and followed the advice of uninstalling all Apple applications, rebooting, and reinstalling iTunes.

 

This is not working. I've tried installing as Administrator but doesn't make any difference at all.

 

There must be a way to fix this? I'm not a tech geek but I want to avoid having to take my laptop back to factory settings to sort this out.

 

Thanks

 

.

Posted on Jan 25, 2014 10:43 AM

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Q: iTunes install errors: MSVCR80.dll and Error 7 (windows error 126)

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  • by Vaquero,

    Vaquero Vaquero Jan 27, 2014 2:34 PM in response to ariddel
    Level 1 (0 points)
    Jan 27, 2014 2:34 PM in response to ariddel

    Uninstall everything that's Apple.

    Uninstall Itunes. Go to Control Panel and  then open Programs and  Features. Uninstall Itunes, then uninstall  Apple Application Support,  then uninstall Apple Mobile Device Support  and then uninstall Apple  Software Update.

    Restart the computer.

    Download the latest version of Itunes and install it.

    Open Itunes.

  • by DetroitMikeMan,

    DetroitMikeMan DetroitMikeMan Jan 27, 2014 2:46 PM in response to rjmacpherson
    Level 1 (0 points)
    Jan 27, 2014 2:46 PM in response to rjmacpherson

    Did it efect your playlist in iTunes?

  • by rjmacpherson,

    rjmacpherson rjmacpherson Jan 27, 2014 2:49 PM in response to DetroitMikeMan
    Level 1 (0 points)
    Jan 27, 2014 2:49 PM in response to DetroitMikeMan

    It did not effect my playlist.

  • by pcbugfixer,Helpful

    pcbugfixer pcbugfixer Jan 27, 2014 8:00 PM in response to ariddel
    Level 1 (5 points)
    Jan 27, 2014 8:00 PM in response to ariddel

    G'day ariddel,

     

    I presume you have used the instructions in this document ??

     

    HT1923: Removing and reinstalling iTunes for Windows Vista, Windows 7, or Windows 8

     

    Also Have you set your system "Folder and Search" options to show Hidden files, folders and drives ?

     

    You are using "Programs and Features." to perform the uninstall(s) I trust ?

     

    Also disabled your Internet Security / Anti-Virus while you are performing the outlined steps (disabled your Internet Security / Anti-Virus is Not needed in most cases) and remembering to reboot after each Step, i.e. after Step 1, then after Step 2, etc.

     

    While trying to remove / delete any Folders, if you get any errors like fail messages, go into the folder and delete single files, continue to try and delete all files in the master folder ignoring subfolders.

    - Then reboot and then try to delete the stubborn folder again and you will succeed deleting it this time.

    - This should then complete step 2 and you reboot before continuing to Step 3.

     

    Regards

    pcbugfixer

     

    <Edited by Host>

  • by Jacki03,

    Jacki03 Jacki03 Jan 27, 2014 2:56 PM in response to pcbugfixer
    Level 1 (0 points)
    Jan 27, 2014 2:56 PM in response to pcbugfixer

    I was able to uninstall everything. When I tried to install itunes again, it now says: Apple Application Support was not found.

    I read to dl Quick Time Player and once I did, it now says: Please install apple application support.

    How do I install this?

  • by rjmacpherson,

    rjmacpherson rjmacpherson Jan 27, 2014 3:00 PM in response to penelope184
    Level 1 (0 points)
    Jan 27, 2014 3:00 PM in response to penelope184

    I am sorry to hear that this didn't work for you.

     

    I am running Windows 7 Ultimate SP1

     

    This is werid as I was having the exact same issue as you.  I spent many hours thinking it was MS C++ Library issue.  I reinstalled all versions of C++ runtimes and then tried the iTunes installation and I was seeing the same issue as you.  Once I finally uninstalled all that was mentioned below via add/remove programs  I didn't even reboot, I just tried the iTunes install and was suprised that it finally worked.  I was even more shocked that it didn't hose my iTunes Library.

     

     

    After trying many things I finally removed all Apple software

    • iTunes
    • Apple Software Update
    • Apple Mobile Device Support
    • Bonjour
    • Apple Application Support
  • by pcbugfixer,

    pcbugfixer pcbugfixer Jan 27, 2014 3:09 PM in response to Vaquero
    Level 1 (5 points)
    Jan 27, 2014 3:09 PM in response to Vaquero

    G'day Vaquero,

     

    Giving partyial advice is not a good idea !!

     

    I suggest that penelope184 follows the outlines in,

    HT1925: Removing and Reinstalling iTunes for Windows XP\

    or

    HT1923: Removing and reinstalling iTunes for Windows Vista, Windows 7, or Windows 8

     

    in accord with penelopes184 Operating System

     

    Besides you missed out on deleting the old folders that contain corrupted data files !!

     

    regards

    pcbugfixer

  • by pcbugfixer,

    pcbugfixer pcbugfixer Jan 27, 2014 3:14 PM in response to penelope184
    Level 1 (5 points)
    Jan 27, 2014 3:14 PM in response to penelope184

    G'day again penelope184,

     

    Is this 64bit 0r a 32 bit installation ?

     

    In the mean time this might also help,

    I presume you have used the instructions in this document ??

     

    HT1923: Removing and reinstalling iTunes for Windows Vista, Windows 7, or Windows 8

     

    Also Have you set your system "Folder and Search" options to show Hidden files, folders and drives ?

     

    You are using "Programs and Features." to perform the uninstall(s) I trust ?

     

    Also disabled your Internet Security / Anti-Virus while you are performing the outlined steps (disabled your Internet Security / Anti-Virus is Not needed in most cases) and remembering to reboot after each Step, i.e. after Step 1, then after Step 2, etc.

     

    While trying to remove / delete any Folders, if you get any errors like fail messages, go into the folder and delete single files, continue to try and delete all files in the master folder ignoring subfolders.

    - Then reboot and then try to delete the stubborn folder again and you will succeed deleting it this time.

    - This should then complete step 2 and you reboot before continuing to Step 3.

     

    If you use Skype or TeamViewer let me know, should you not be able to complete the above instructions or do not have sufficient Technical Know-How to do so.

     

    Regards

    pcbugfixer

  • by pcbugfixer,

    pcbugfixer pcbugfixer Jan 27, 2014 3:20 PM in response to DetroitMikeMan
    Level 1 (5 points)
    Jan 27, 2014 3:20 PM in response to DetroitMikeMan

    The Playlist is not contained in any of the iTunes application software folders and as such is not uninstalled by performing the instructions.

     

    The Playlist is in the "User Name" data / Document folder "My Music\iTunes" and remains there unlless you delete it !!

     

    Regards

    pcbugfixer

  • by pcbugfixer,

    pcbugfixer pcbugfixer Jan 27, 2014 3:26 PM in response to Jacki03
    Level 1 (5 points)
    Jan 27, 2014 3:26 PM in response to Jacki03

    G'day jacki03,

     

    Sorry to tell you but you again have a corrupted installation of iTunes and you will need to start all over again with the uninstall instructions

     

    Quick Time was not affected by the corrupted iTunes, however now that you have also performed the uninstall and reinstall of the Quick Time player, uninstall it for now and reinstall it after you have completed the corrections to iTunes.

     

    Regards

    pcbugfixer

  • by pcbugfixer,

    pcbugfixer pcbugfixer Jan 27, 2014 9:00 PM in response to penelope184
    Level 1 (5 points)
    Jan 27, 2014 9:00 PM in response to penelope184

    G'day penelope184,

     

    "rjmacpherson " went to a lot of trouble with the installation correction of the MS C++ Library issues which may have been unnecessary if the original instructions had been followed correctly in my opinion (we are all entitled to our opinions - The Devil made me say that) !!

     

    Regards

    pcbugfixer

     

    <Edited by Host>

  • by Jacki03,

    Jacki03 Jacki03 Jan 27, 2014 3:43 PM in response to pcbugfixer
    Level 1 (0 points)
    Jan 27, 2014 3:43 PM in response to pcbugfixer

    Thanks, I am going to uninstall both now.

    I am wondering, earlier when I had only reinstalled Itunes, it said: Apple Application Support was not found.

    I then installed quicktime. I have a feeling the same thing will happen. Is there anything else I have to install along with itunes?

  • by Lolley_San,

    Lolley_San Lolley_San Jan 27, 2014 3:58 PM in response to rjmacpherson
    Level 1 (0 points)
    Jan 27, 2014 3:58 PM in response to rjmacpherson

    That worked for me..but I did reboot after all the uninstalls...and did not lose any data.

  • by pcbugfixer,

    pcbugfixer pcbugfixer Jan 27, 2014 9:01 PM in response to Jacki03
    Level 1 (5 points)
    Jan 27, 2014 9:01 PM in response to Jacki03

    G'day jacki03,

     

    Itunes installation installs all nessessary aplications that belong to it and for it !!

     

    QuickTime Player although from Apple, has nothing to do with the iTunes Installation and is seperate from it !!

     

    Regards

    pcbugfixer

     

    <Edited by Host>

  • by Jacki03,

    Jacki03 Jacki03 Jan 27, 2014 4:05 PM in response to pcbugfixer
    Level 1 (0 points)
    Jan 27, 2014 4:05 PM in response to pcbugfixer

    I uninstalled quick time and now am in the process of uninstalling itunes. I had to use revo uninstalled because i could need get rid of the AMDS or associated files without it. I will restart and then try to install itunes again. Ill report back then, thanks for your suggestions.

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