cannot connect to internet through ethernet cable

I uninstalled QuickHeal and installed Bitdefender total security.

Could not find Quickheal in device manager. nothing can be pinged. the small internet icon on the right bottom has yellow triangle with a ! mark on it and it says no internet access'. here is ipconfig/all:-

Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Users\s k>ipconfig\all
The system cannot find the path specified.

C:\Users\s k>ipconfig\all
The system cannot find the path specified.

C:\Users\s k>
C:\Users\s k>ipconfig/all

Windows IP Configuration

Host Name . . . . . . . . . . . . : sk-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Bluetooth Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network)
Physical Address. . . . . . . . . : 00-06-C9-90-02-1D
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
Physical Address. . . . . . . . . : E0-69-95-E4-FA-CD
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::eccc:dbce:10c:f949%10(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.18(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : fe80::9e8e:dcff:fe1f:81e8%10
192.168.1.1
DNS Servers . . . . . . . . . . . : 218.248.255.161
218.248.255.193
NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter isatap.{BC4B9272-C5DE-43FE-A557-222E7BA6E1C6}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Teredo Tunneling Pseudo-Interface:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

C:\Users\s k>^V