(My iPhone syncs fine with a bunch of other computers.)
iTunes won't run after installation.
I Download 64 bit iTunes from https://www.apple.com/itunes/download/
The installation on Windows 7 Enterprise goes without a glitch.
When I run it it says "Apple Application Support was not found. Apple Application Support is required to run iTuners. Please uninstall iTunes, then install iTunes again. Error 2 (Windows error 2)" (I get this message twice, with one minor variation. The advice does not help.)
I found articles on the net (https://discussions.apple.com/thread/2151777?start=0&tstart=0) which says to use WinRAR to unpack the installer and then install the components one by one.
Download and install WinRAR. Right-click the iTunesSetup.exe icon and choose "Open with WinRAR". Once the EXE is opened in WinRAR, double-click AppleApplicationSupport.msi and when the installer window is open choose "Repair".
iTunes now starts fine.
I connect my iPhone 4S. Nothing happens. It is not charging. iTunes does not discover it.
There is a message about "USB Hub Power exceeded." This happens regardless if I connect it directly or through any of my three (3) different externally powered USB hubs.
I had this before for USB Memory sticks as well, but re-installing drivers helped.
What do I do now?