virtualbox.org

Since Guest Additions does not work with Windows 10 Tech Preview, how do you get files on and off the Win 10 VM running under Windows 8.1 X64?

Is Guest Additions being worked on to make it useable with a Windows 10 VM? Currently no shared folders, no drag and drop, no shared clipboard.
Is there a forum just for discussing Guest Addition problems?

No idea why but I just tried reinstalling Guest Additions and it seems to have worked this time. At least Shared Folder is working, not sure about the other stuff yet.

Yup, everything is working now.

No idea what happened but I'm a happy man.

In answer to the first question, if you can't use GA shared folders then you would use a normal network share. Details on Google.