How do I fix a laptop thats been on a domain, so it can used on a workgroup?

Computer that is not communicating:
 
Windows IP Configuration
        Host Name . . . . . . . . . . . . : HPLaptop
        Primary Dns Suffix  . . . . . . . : 
        Node Type . . . . . . . . . . . . : Unknown
        IP Routing Enabled. . . . . . . . : No
        WINS Proxy Enabled. . . . . . . . : Yes
        DNS Suffix Search List. . . . . . : DOMAIN.INVALID
 
Ethernet adapter Local Area Connection:
 
        Media State . . . . . . . . . . . : Media disconnected
        Description . . . . . . . . . . . : NVIDIA nForce Networking Controller
        Physical Address. . . . . . . . . : 00-16-D3-06-C5-5B
 
Ethernet adapter Wireless Network Connection 2:
 
        Connection-specific DNS Suffix  . : DOMAIN.INVALID
        Description . . . . . . . . . . . : Broadcom 802.11b/g WLAN
        Physical Address. . . . . . . . . : 00-14-A5-BC-4A-65
        Dhcp Enabled. . . . . . . . . . . : Yes
        Autoconfiguration Enabled . . . . : Yes
        IP Address. . . . . . . . . . . . : 192.168.1.105
        Subnet Mask . . . . . . . . . . . : 255.255.255.0
        Default Gateway . . . . . . . . . : 192.168.1.1
        DHCP Server . . . . . . . . . . . : 192.168.1.1
        DNS Servers . . . . . . . . . . . : 68.87.73.242
                                            68.87.71.226
                                            68.87.64.196
        Lease Obtained. . . . . . . . . . : Wednesday, February 25, 2009 5:35:55 PM
        Lease Expires . . . . . . . . . . : Thursday, February 26, 2009 5:35:55 PM
 
Ethernet adapter {05005485-6F23-46A3-8AE4-660F4D5157D3}:
 
        Connection-specific DNS Suffix  . : 
        Description . . . . . . . . . . . : Nortel IPSECSHM Adapter - Packet Scheduler Miniport
        Physical Address. . . . . . . . . : 44-45-53-54-42-00
        Dhcp Enabled. . . . . . . . . . . : No
        IP Address. . . . . . . . . . . . : 0.0.0.0
        Subnet Mask . . . . . . . . . . . : 0.0.0.0
        IP Address. . . . . . . . . . . . : fe80::4645:53ff:fe54:4200%5
        Default Gateway . . . . . . . . . : 
        DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1
                                            fec0:0:0:ffff::2%1
                                            fec0:0:0:ffff::3%1
 
Tunnel adapter Teredo Tunneling Pseudo-Interface:
 
        Connection-specific DNS Suffix  . : 
        Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
        Physical Address. . . . . . . . . : FF-FF-FF-FF-FF-FF-FF-FF
        Dhcp Enabled. . . . . . . . . . . : No
        IP Address. . . . . . . . . . . . : fe80::ffff:ffff:fffd%6
        Default Gateway . . . . . . . . . : 
        NetBIOS over Tcpip. . . . . . . . : Disabled
 
Tunnel adapter Automatic Tunneling Pseudo-Interface:
 
        Connection-specific DNS Suffix  . : DOMAIN.INVALID
        Description . . . . . . . . . . . : Automatic Tunneling Pseudo-Interface
        Physical Address. . . . . . . . . : C0-A8-01-69
        Dhcp Enabled. . . . . . . . . . . : No
        IP Address. . . . . . . . . . . . : fe80::5efe:192.168.1.105%2
        Default Gateway . . . . . . . . . : 
        DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1
                                            fec0:0:0:ffff::2%1
                                            fec0:0:0:ffff::3%1
        NetBIOS over Tcpip. . . . . . . . : Disabled

                                  

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