Can't install new itunes upgrade on Windows 7. Keep getting Apple Mobile Device Service timed out

Question

Ever since the new upgrade of iTunes came out I can no longer open iTunes.  I have uninstalled and reinstalled numerous times to no avail.  I keep getting  the Apple Mobile Device Service warning that it timed out.  I go into Services and I can't start the mobile device there either.  I have followed every suggestion online and still can't get it to work.

Answer 1

For general advice see Troubleshooting issues with iTunes for Windows updates.
The steps in the second box are a guide to removing everything related to iTunes and then rebuilding it which is often a good starting point unless the symptoms indicate a more specific approach. Review the other boxes and the list of support documents further down the page in case one of them applies.
Your library should be unaffected by these steps but there is backup and recovery advice elsewhere in the user tip.
If the advice above doesn't resolve things you could try this alternate version:
iTunes 12.1.0.71 for Windows (64-bit - for older video cards) - itunes64setup.exe (2015-01-28)
Or roll back to the previous build:
iTunes 12.0.1.26 for Windows (32-bit) - iTunesSetup.exe (2014-10-16)
iTunes 12.0.1.26 for Windows (64-bit) - iTunes64Setup.exe (2014-10-16)
tt2