ITunes 11 won't sync with my iPhone 4s?

Every time I try and sync my iPhone, it gets to the 'Preparing to Sync' stage, then the whole window freezes. The only way for me to exit off of iTunes it by using the Task Manager. Could someone help me, it's been going on for about a month

Try running CCleaner. If that doesn't help, re-install iTunes (you won't lose any of your content).

I tried re0installing iTunes and its the same thing, any other suggestions?