Search in Bootcamp From Mac OS X

SpotLight doesn’t index Bootcamp drive, since it has another file system. SpotLight indexes only HFS and HFS+ file systems.
To find files in a Bootcamp drive from Mac OS X drive, do the following:

• Type in Terminal

  $ cd /Volumes
  

• Then find all your drive names, you have:

  $ ls
  

• Now you can search something by pattern. For instance all Microsoft Word files in Bootcamp:

  $ find BOOTCAMP -name "*.doc"
  

• After you have found what you need, you might want to stop the search, that can be pretty long. To stop search just press Ctrl+C

Reference