Abre el bloc de notas y pega esto:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WZCSVC]
"Type"=dword:00000020
"Start"=dword:00000002
"ErrorControl"=dword:00000001
"ImagePath"=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,\
74,00,25,00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,73,\
00,76,00,63,00,68,00,6f,00,73,00,74,00,2e,00,65,00,78,00,65,00,20,00,2d,00,\
6b,00,20,00,6e,00,65,00,74,00,73,00,76,00,63,00,73,00,00,00
"DisplayName"="Configuración inalámbrica rápida"
"Group"="TDI"
"DependOnService"=hex(7):52,00,70,00,63,00,53,00,73,00,00,00,4e,00,64,00,69,00,\
73,00,75,00,69,00,6f,00,00,00,00,00
"DependOnGroup"=hex(7):00,00
"ObjectName"="LocalSystem"
"Description"="Proporciona configuración automática para los adaptadores 802.11"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WZCSVC\Parameters]
"ServiceDll"=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,\
00,74,00,25,00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,\
77,00,7a,00,63,00,73,00,76,00,63,00,2e,00,64,00,6c,00,6c,00,00,00
"ServiceMain"="WZCSvcMain"
"ServiceDllUnloadOnStop"=dword:00000001
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WZCSVC\Security]
"Security"=hex:01,00,14,80,90,00,00,00,9c,00,00,00,14,00,00,00,30,00,00,00,02,\
00,1c,00,01,00,00,00,02,80,14,00,ff,01,0f,00,01,01,00,00,00,00,00,01,00,00,\
00,00,02,00,60,00,04,00,00,00,00,00,14,00,fd,01,02,00,01,01,00,00,00,00,00,\
05,12,00,00,00,00,00,18,00,ff,01,0f,00,01,02,00,00,00,00,00,05,20,00,00,00,\
20,02,00,00,00,00,14,00,8d,01,02,00,01,01,00,00,00,00,00,05,0b,00,00,00,00,\
00,18,00,fd,01,02,00,01,02,00,00,00,00,00,05,20,00,00,00,23,02,00,00,01,01,\
00,00,00,00,00,05,12,00,00,00,01,01,00,00,00,00,00,05,12,00,00,00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WZCSVC\Enum]
"0"="Root\\LEGACY_WZCSVC\\0000"
"Count"=dword:00000001
"NextInstance"=dword:00000001
guardalo con extension .reg y ejecutalo, reinicia a ver que tal.
Si así aún no te funciona, lo que puedes hacer es bajarte un programa que gestione redes inalámbricas, que funcionan con cualquier inalámbrica:
Software gratis:
http://www.boingo.com/downloads/BW1201/boingoinstaller.exe
Software de pago:
Odyssey Access Client
http://download.juniper.net/software/aaa_802/public/oac/460_R3/OdysseyAccessClient.msi
Easy Wifi Radar
http://www.pctel.com/downloads/rc_v3setup.exe
Saludos.