Student home dir folder permissions

[techie08]

Hi Everyone

 

We currently run windows 7 with the file server for the students home directories on 2008r2 and every so often the security permissions of a users home folder get stripped out and replaced with the everyone group with only the delete permission.

 

We are getting around half a dosen or so every couple of days and started to annoy us as we cant figure out why.

 

Many Thanks