Where can i download Apple Mobile Device USB driver

For reasons that are unclear the iTunes installer may fail to install or update specific components such as Apple Application Support or Apple Mobile Device Support, even when undertaking a "clean" install such as that described above in Removing and reinstalling iTunes and other software components. In such cases it may help to extract the individual components from the downloaded iTunesSetup.exe, itunes6464setup.exe oriTunes64Setup.exe file using a utility such as 7-Zip, then install the appropriate .msi file for the missing/outdated component.

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Troubleshooting issues with iTunes for Wi… - Apple Community