As part of google apps we have to allow chrome to access local files to uploade files etc to the Google Drive. This is ok apart from the fact the file dialogue opens and is pointing at the C:\program files\ folder. Our policies prevent access and browsing of the c: drive for staff and students, yet chrome ignores this.

I've got the chrome policy set to stop browsing the local drives but that only works if you try from the address bar! Is there any way to fix where this dialogue box browses to?