HT1923 iTunes on my Windows Vista has failed to update over several weeks. Attempting uninstal/reinstall according to iTunes support page. Will not uninstall 'Apple Mobile Device Support' - goes to 99% then progress bar unwinds completely. Tried rebooting

iTunes on my Windows Vista has failed to update over several weeks. Audio will not play out. Attempting uninstal/reinstall according to iTunes support page. Will not uninstall 'Apple Mobile Device Support' - goes to 99% then progress bar unwinds completely. Tried rebooting. Any clues??

Hey petanque1,
Thanks for the question. I understand that you are experiencing issues installing iTunes for Windows. The following article outlines the error message you are receiving and a potential resolution:
iTunes 11.1.4 for Windows: Unable to install or open
http://support.apple.com/kb/TS5376
Some Windows customers may experience installation issues while trying to install or open iTunes 11.1.4.
Symptoms may include:
"The program can't start because MSVCR80.dll is missing from your computer"
"iTunes was not installed correctly. Please reinstall iTunes. Error 7 (Windows Error 126)”
"Runtime Error: R6034 - An application has made an attempt to load the C runtime library incorrectly"
"Entry point not found: videoTracks@QTMovie@@QBE?AV?$Vector@V?$RefPtr@VQTTrack@@@***@@$0A@VCrashOnOverf low@@***@@XZ could not be located in the dynamic link library C:\Program Files(x86)\Common Files\Apple\Apple Application Support\WebKit.dll”
Resolution
Follow these steps to resolve the issue:
Check for .dll files
1. Go to C:\Program Files (x86)\iTunes and C:\Program Files\iTunes and look for .dll files.
2. If you find QTMovie.DLL, or any other .dll files, move them to the desktop.
3. Reboot your computer.
Note: Depending on your operating system, you may only have one of the listed paths.
Uninstall and reinstall iTunes
1. Uninstall iTunes and all of its related components.
2. Reboot your computer. If you can't uninstall a piece of Apple software, try using theMicrosoft Program Install and Uninstall Utility.
3. Re-download and reinstall iTunes 11.1.4.
Thanks,
Matt M.

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