Hi,
Read this from Apple:
If you can't install or update iTunes for Windows
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Uninstall everything as per Apple's instructions:
"Remove and reinstall iTunes and related software components for Windows 7 and later"
https://support.apple.com/en-au/HT204275
Uninstall iTunes and related software components in the following order:
- iTunes
- Apple Software Update
- Apple Mobile Device Support
- Bonjour
- Apple Application Support 32-bit
- Apple Application Support 64-bit
On some systems, you might see two versions of Apple Application Support or iTunes. This is expected. If you see two versions, make sure that you uninstall both.
Or use this Program to remove it:
http://www.revouninstaller.com/revo\_uninstaller\_free\_download.html
"Troubleshooting issues with iTunes for Windows updates"
https://discussions.apple.com/docs/DOC-6562
Download iTunes 12.4.3 for Windows (64-bit - for older video cards)
Then download and save iTunes to the Desktop > then right click > select Run as Administrator to install.
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iTunes 12.10.10 for Windows (Windows 32 bit)
https://support.apple.com/kb/DL2064?viewlocale=en_US&locale=en_US
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If the advice already given does not fix it, please contact Apple Support for further assistance.
"Trouble installing iTunes for Windows"
http://support.apple.com/kb/HT1926
"iTunes Support-How to use iTunes"
http://www.apple.com/support/itunes/
"iTunes Contact Support"
http://www.apple.com/support/itunes/contact/
Or ask in the Apple iTunes Community:
https://discussions.apple.com/community/itunes
Cheers.