title: how to migrate a number of large sites from IIS 7 to IIS 8.5?
body: <p>I have a number of large sites with thousands of images consuming few gigabytes each. We got a new server and I have to move all these sites there (old server will be decommissioned). What's the best way to do this and what I should be paying attention to?</p>
  
  <p>Old server is Windows 2008 R2 IIS 7.5
  New server is Windows 2012 IIS 8.5</p>