Marca las siguientes entradas y pulsa fix para eliminarlas:

C:\WINNT\System32\WBEM\WinMgmt.exe ********* si es un proceso que utilices no lo borres
C:\WINNT\system32\netrq.exe
C:\WINNT\SYSTEM32\DWRCS.EXE

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = res://C:\WINNT\rvqvu.dll/sp.html#12345

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = res://C:\WINNT\rvqvu.dll/sp.html#12345

R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = about:blank

R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = res://C:\WINNT\rvqvu.dll/sp.html#12345

R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = res://C:\WINNT\rvqvu.dll/sp.html#12345

R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = res://C:\WINNT\rvqvu.dll/sp.html#12345

R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = res://C:\WINNT\rvqvu.dll/sp.html#12345

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Microsoft Internet Explorer provided by EADS-CASA

R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Int ernet Settings,AutoConfigURL = http://configuracion

R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Int ernet Settings,ProxyOverride = 127.0.0.1

R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Vínculos

R3 - Default URLSearchHook is missing

O2 - BHO: (no name) - {A19AF5E5-C977-8A72-B0F7-307AF9E6455A} - C:\WINNT\msox32.dll

O4 - HKLM\..\Run: [13.tmp] C:\DOCUME~1\LOCAL-~1\LOCALS~1\Temp\13.tmp.exe 2 10001

O4 - HKLM\..\Run: [winui32.exe] C:\WINNT\winui32.exe

O9 - Extra button: Related - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINNT\web\related.htm

O9 - Extra 'Tools' menuitem: Show &Related Links - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINNT\web\related.htm

O14 - IERESET.INF: START_PAGE_URL=http://global.intra.casa.corp

O17 - HKLM\System\CCS\Services\Tcpip\Parameters: Domain = eadscasa.casa.corp
O17 - HKLM\System\CS1\Services\Tcpip\Parameters: Domain = eadscasa.casa.corp
O17 - HKLM\System\CS2\Services\Tcpip\Parameters: Domain = eadscasa.casa.corp
O17 - HKLM\System\CS3\Services\Tcpip\Parameters: Domain = eadscasa.casa.corp

Cambias nuevamente la página de inicio y reinicias, nos comentas los resultados