Migration Assistant PC to Mac
Mac is stuck Looking for Source, how can I get my PC to find my Mac and the Mac to find the PC?
The Migration Assistant has been downloaded to the PC
iMac, OS X Mavericks (10.9)
See > Switch Basics: Migrate your Windows files to your Mac
If the steps in that article are not working, then click on the ► Manually migrating section at the bottom of the page and try one of those methods.