When moving files within the Cornell fileshare, Windows warns that it is not from a trusted source. To remove this warning and trust everything on the cornell.edu network, follow these steps:
- Start Menu > type Internet Options
- Select Security > Local intranet zone
- Click Sites > Advanced
- Enter "\\cornell.edu"
- Make sure 'Require server verification...' is unticked
Source: https://superuser.com/questions/44503/how-do-i-tell-windows-7-to-trust-a-particular-network-location