1.Click Start, point to Settings, and then click Control Panel.
2.Double-click Network, click "File and printer sharing for Microsoft Networks" on the Configuration tab, and then click Properties.
3.In the Property box, click Browse Master, click Enabled in the Value box, click OK, and then click OK.
4.Click Yes when you are prompted to restart your computer.
or you can try to delete the AutoLogon key in the registry at
HKEY_Local_Machine\Software\Microsoft\Windows\CurrentVersion\Network\Real Mode Net
2.Double-click Network, click "File and printer sharing for Microsoft Networks" on the Configuration tab, and then click Properties.
3.In the Property box, click Browse Master, click Enabled in the Value box, click OK, and then click OK.
4.Click Yes when you are prompted to restart your computer.
or you can try to delete the AutoLogon key in the registry at
HKEY_Local_Machine\Software\Microsoft\Windows\CurrentVersion\Network\Real Mode Net