NAS Server. Files are Read-Only when viewed from Win7

[doni49]

I followed the guide at this link to get SAMBA configured to run a NAS server.

When I browse to it from my Win7 computer, I can open files read-only from the server shares. I can't write anything to them.

Also -- when I browse to \\raspberrypi\, I see TWO shares: Backup and backups. But if I click on backups, I get an error message that it can't be accessed. I don't understand where this "backups" came from -- how can I get rid of it?

EDIT: RE the second part, I think I've found the REASON it was created.

sudo useradd backups -m -G users

I've just come from viewing the man page for the useradd command and see that -m creates a corresponding user folder in the Home folder. So the next Q is: can I safely delete that folder?'

EDIT #2: I figured out how to change the shares folder such that I can write to it from my laptop.

chmod g+rwx shares