Hi, I'm using Windows Vista (64-bit version) and I'm having the same problem of "Service 'Apple Mobile Device' (Apple Mobile Device) failed to start. Verify that you have sufficient privileges to start system services" as mentioned by others during installation, with 3 options to choose from Abort, Retry, and Ignore.
Mind you that i had a previous version of iTunes working (12.0.1.26) and when the newer version became available (12.1.0.71) I decided to update it and the above problem arose.
So, I found the article (Troubleshooting issues with iTunes for Windows updates) on this subject and did as instructed in the order advised. The only
thing that I wasn't able to uninstall was the Apple Software Update because although it was listed in the Programs and Features but when i clicked on it, it didn't have any actions outlines such as "Uninstall, change or Repair " as the others do.
Anyhow, I uninstalled the rest and rebooted and checked all the folders as advised and deleted the only folder that still existed, being "C:\Program Files (x86)\Common Files\Apple".
Then proceeded to Install the new iTunes version again and again I had the same problem. So, when i ask to "Retry" it gives me the same error. When asking to Ignore, it finished the installation and mentions “Congratulations iTunes has been successfully installed in your system”. But when I try to actually run iTunes, then the following error comes up mentioning " iTunes was not installed correctly. Please reinstall iTunes. Error 7 (Windows error 193) “
So, what to do now?
I need iTunes to sync my contacts with Outlook.
Would appreciate a working solution - anyone???