Bueno para empezar te recomiendo desinstalar el Spyware Begone ya que es un "Falso Antispyware" que en lugar de eliminar te instala mas spyware

Luego ejecuta HijackThis y dale FIX a estas entradas:

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = about:NavigationFailure
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = about:NavigationFailure
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = about:NavigationFailure
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = about:NavigationFailure
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant = about:NavigationFailure
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = about:NavigationFailure

O4 - HKLM\..\RunServices: [Microsoft Update] wxpalqr.exe

O15 - ProtocolDefaults: 'http' protocol is in My Computer Zone, should be Internet Zone
O15 - ProtocolDefaults: 'http' protocol is in My Computer Zone, should be Internet Zone (HKLM)

O16 - DPF: Microsoft WFC Forms Designer - file://D:\VJ98\wfcforms.cab -
O16 - DPF: Visual Studio 6 Extensibility Libraries - file://D:\VJ98\vstudio6.cab

Usa el Disk Cleaner para limpiar cookies y temporales

Pásale Micrososft Antispyware y Ad-Aware SE actualizado eh instala SpywareBlaster

Reinicia y después nos contas los resultados.

Salu2