Q: iTunes freezing when I plug my phone in. I need help! It's getting increasingly frustrating!

My iTunes is slow and often freezes. When I plug my iphone 5 into my computer it automatically freezes. I can't do anything and have to use the task manager to exit. I am using the most recent software 11.1.5. I have tried uninstalling and repairing, I have also searched on the internet for things to do to help but none have worked so far. I am also using windows 7. I did not have this problem before installing the new software.