Unable to access Samba share with Ubuntu on Win7

I have an issue with my Samba share - I am unable to write to it, edit a file or rename a folder etc within Windows.

I am using Windows 7 and Ubuntu 12.04 and this is my Samba config.

I can connect to the /sylius directory no problem (no password required), but I cannot save to it.

Is there an issue with my Samba config or is this a Windows configuration problem?

This is the error I get:

[global]

# ----------------------- Network Related Options -------------------------
#
# workgroup = NT-Domain-Name or Workgroup-Name, eg: MIDEARTH
#
# server string is the equivalent of the NT Description field
#
# netbios name can be used to specify a server name not tied to the hostname
#
# Interfaces lets you configure Samba to use multiple interfaces
# If you have multiple network interfaces then you can list the ones
# you want to listen on (never omit localhost)
#
# Hosts Allow/Hosts Deny lets you restrict who can connect, and you can
# specifiy it as a per share option as well
#

  create mask = 0664
  directory mask = 0775
  level2 oplocks = True

  smb ports = 445
  workgroup = DEV
  server string = Samba Server on %h

;       netbios name = MYSERVER

;       interfaces = lo eth0 192.168.12.2/24 192.168.13.2/24
;       hosts allow = 127. 192.168. 10.100.

        # logs split per machine
;       log file = /var/log/samba/%m.log
        # max 50KB per log file, then rotate
;       max log size = 50

#       load printers = no
  show add printer wizard = no
  printing = none
  printcap name = /dev/null
  disable spoolss = yes

; Let's tune!
  socket options = IPTOS_LOWDELAY TCP_NODELAY SO_SNDBUF=4096 SO_RCVBUF=4096

  dns proxy = no

# ----------------------- Standalone Server Options ------------------------
#
# Security can be set to user, share(deprecated) or server(deprecated)
#
# Backend to store user information in. New installations should
# use either tdbsam or ldapsam. smbpasswd is available for backwards
# compatibility. tdbsam requires no further configuration.

  security = user
  map to guest = Bad User
  guest account = vagrant
  passdb backend = tdbsam
#       passdb backend = smbpasswd


# ----------------------- Browser Control Options ----------------------------
#
# set local master to no if you don't want Samba to become a master
# browser on your network. Otherwise the normal election rules apply
#
# OS Level determines the precedence of this server in master browser
# elections. The default value should be reasonable
#
# Preferred Master causes Samba to force a local browser election on startup
# and gives it a slightly higher chance of winning the election
  local master = no
;       os level = 33
  preferred master = no

# --------------------------- Filesystem Options ---------------------------
#
# The following options can be uncommented if the filesystem supports
# Extended Attributes and they are enabled (usually by the mount option
# user_xattr). Thess options will let the admin store the DOS attributes
# in an EA and make samba not mess with the permission bits.
#
# Note: these options can also be set just per share, setting them in global
# makes them the default for all shares

;       map archive = no
;       map hidden = no
;       map read only = no
;       map system = no
;       store dos attributes = yes

usershare allow guests = yes

#============================ Share Definitions ==============================

[homes]
  comment = Home Directories
  browseable = yes
  guest ok = yes
  writable = yes
;  valid users = %S

[sylius]
  comment = Sylius instance
  path = /var/www/sylius
  guest ok = yes
  writeable = yes
  browsable = yes

Ordinary Linux file permissions still apply here. If the Linux user they become (presumably, 'vagrant' here) does not have write permission to the folder, they cannot write to it.

you could share with extra rights for the user.

Also there was some registry editing required in Win 7. May be not in Professional version.

---------- Post updated at 09:07 AM ---------- Previous update was at 09:06 AM ----------

sorry, it was for domain login on Win 7