No need to unplug the router or modem, this is a Windows issue.
Uninstall Tune-Up Utilities 2010, Ad-Aware, and Symantec if you are no longer using it
In HijackThis delete these entries:
R1 - HKCU\Software\Microsoft\In
ternet Connection Wizard,ShellNext =
http://partnerpage.google.com/smallbiz.dell.com/en_us?hl=en&client=dell-usuk&channel=us-smb&ibd=3080426R1 - HKCU\Software\Microsoft\Wi
ndows\Curr
entVersion
\Internet Settings,ProxyServer = http=127.0.0.1:5555
O2 - BHO: Browser Address Error Redirector - {CA6319C0-31B7-401E-A518-A
07C3DB8F77
7} - C:\Program Files\Dell\BAE\BAE.dll
O16 - DPF: {02BF25D5-8C17-4B23-BC80-D
3488ABDDC6
B} (QuickTime Object) -
http://appldnld.apple.com.edgesuite.net/content.info.apple.com/QuickTime/qtactivex/qtplugin.cabO16 - DPF: {6E32070A-766D-4EE6-879C-D
C1FA91D2FC
3} (MUWebControl Class) -
http://update.microsoft.com/microsoftupdate/v6/V5Controls/en/x86/client/muweb_site.cab?1248825862359O23 - Service: NTRU TSS v1.2.1.25 TCS (tcsd_win32.exe) - Unknown owner - C:\Program Files\NTRU Cryptosystems\NTRU TCG Software Stack\bin\tcsd_win32.exe
O23 - Service: TuneUp Drive Defrag Service (TuneUp.Defrag) - TuneUp Software - C:\Program Files\TuneUp Utilities 2010\TuneUpDefragService.e
xe
O23 - Service: TuneUp Utilities Service (TuneUp.UtilitiesSvc) - TuneUp Software - C:\Program Files\TuneUp Utilities 2010\TuneUpUtilitiesServic
e32.exe
Then
Download and install Vipre Rescue (free at
http://live.sunbeltsoftware.com/)
And Reboot