Windows defender no funciona

Hola nuevamente

Revisando los reportes te comento que podría será algo complicado dejar Windows Defender al 100%. Te daré varios pasos para ir reparando, procura hacerlos todos aunque el problema parezca solucionarse.

Realiza lo siguiente:

:one: Crea una copia de seguridad del registro con Registry Backup, no importa si es la versión portable o instalable:

Tweaking Registry Backup

  • Después de instalar o descomprimir ejecuta el programa (de ser portable es el ejecutable TweakingRegistryBackup.exe).
  • Asegurate que en la pestaña Registry Backup este todo moarcado.
  • En Backup Name puedes dejarlo por defecto o asignar algún nombre
  • Presiona el botón BackUp now

:two: Deshabilita nuevamente tu antivirus: ¿Cómo deshabilitar temporalmente su Antivirus?

:three: En el equipo, con los demás programas cerrados abra el notepad; puede abrirlo en la barra de búsqueda de windows y escribiendo notepad.exe

Posteriormente, copie y pegue este script de reparación dentro del Notepad comenzando en Start y terminando en End:

Start
SystemRestore: On
CreateRestorePoint:
CloseProcesses:

S3 avast; "C:\Program Files (x86)\AVAST Software\Browser\Update\AvastBrowserUpdate.exe" /svc [X]
S3 avastm; "C:\Program Files (x86)\AVAST Software\Browser\Update\AvastBrowserUpdate.exe" /medsvc [X]
S3 AvastSecureBrowserElevationService; "C:\Program Files (x86)\AVAST Software\Browser\Application\91.0.10364.115\elevation_service.exe" [X]
S2 AvastWscReporter; "C:\Program Files\Avast Software\Avast\wsc_proxy.exe" /runassvc /rpcserver [X]
2021-08-21 05:11 - 2021-08-21 05:11 - 000000000 ____D C:\WINDOWS\system32\.exe
StartRegedit:
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SecurityHealthService]
"DependOnService"=hex(7):52,00,70,00,63,00,53,00,73,00,00,00,00,00
"Description"="@%systemroot%\\system32\\SecurityHealthAgent.dll,-1001"
"DisplayName"="@%systemroot%\\system32\\SecurityHealthAgent.dll,-1002"
"ErrorControl"=dword:00000001
"FailureActions"=hex:80,51,01,00,00,00,00,00,00,00,00,00,03,00,00,00,14,00,00,\
  00,01,00,00,00,60,ea,00,00,01,00,00,00,60,ea,00,00,00,00,00,00,00,00,00,00
"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,00,73,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,53,\
  00,65,00,63,00,75,00,72,00,69,00,74,00,79,00,48,00,65,00,61,00,6c,00,74,00,\
  68,00,53,00,65,00,72,00,76,00,69,00,63,00,65,00,2e,00,65,00,78,00,65,00,00,\
  00
"LaunchProtected"=dword:00000002
"ObjectName"="LocalSystem"
"RequiredPrivileges"=hex(7):53,00,65,00,49,00,6d,00,70,00,65,00,72,00,73,00,6f,\
  00,6e,00,61,00,74,00,65,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,\
  65,00,00,00,53,00,65,00,42,00,61,00,63,00,6b,00,75,00,70,00,50,00,72,00,69,\
  00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,52,00,65,00,73,00,\
  74,00,6f,00,72,00,65,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,\
  00,00,00,53,00,65,00,44,00,65,00,62,00,75,00,67,00,50,00,72,00,69,00,76,00,\
  69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,43,00,68,00,61,00,6e,00,67,\
  00,65,00,4e,00,6f,00,74,00,69,00,66,00,79,00,50,00,72,00,69,00,76,00,69,00,\
  6c,00,65,00,67,00,65,00,00,00,53,00,65,00,53,00,65,00,63,00,75,00,72,00,69,\
  00,74,00,79,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,\
  53,00,65,00,41,00,73,00,73,00,69,00,67,00,6e,00,50,00,72,00,69,00,6d,00,61,\
  00,72,00,79,00,54,00,6f,00,6b,00,65,00,6e,00,50,00,72,00,69,00,76,00,69,00,\
  6c,00,65,00,67,00,65,00,00,00,53,00,65,00,54,00,63,00,62,00,50,00,72,00,69,\
  00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,53,00,79,00,73,00,\
  74,00,65,00,6d,00,45,00,6e,00,76,00,69,00,72,00,6f,00,6e,00,6d,00,65,00,6e,\
  00,74,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,\
  65,00,53,00,68,00,75,00,74,00,64,00,6f,00,77,00,6e,00,50,00,72,00,69,00,76,\
  00,69,00,6c,00,65,00,67,00,65,00,00,00,00,00
"ServiceSidType"=dword:00000001
"Start"=dword:00000003
"Type"=dword:00000010

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SecurityHealthService\Security]
"Security"=hex:01,00,14,80,1c,01,00,00,28,01,00,00,14,00,00,00,30,00,00,00,02,\
  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,ec,00,08,00,00,00,00,00,18,00,9d,00,02,00,01,02,00,00,00,00,00,\
  05,20,00,00,00,21,02,00,00,00,00,14,00,9d,01,02,00,01,01,00,00,00,00,00,05,\
  12,00,00,00,00,00,18,00,9d,01,02,00,01,02,00,00,00,00,00,05,20,00,00,00,20,\
  02,00,00,00,00,14,00,9d,00,02,00,01,01,00,00,00,00,00,05,04,00,00,00,00,00,\
  14,00,9d,00,02,00,01,01,00,00,00,00,00,05,06,00,00,00,00,00,28,00,fd,01,02,\
  00,01,06,00,00,00,00,00,05,50,00,00,00,e5,fe,79,5f,a0,ae,0d,3b,22,fa,0a,c9,\
  01,5a,41,3a,e5,a6,4a,b7,00,00,28,00,ff,01,0f,00,01,06,00,00,00,00,00,05,50,\
  00,00,00,b5,89,fb,38,19,84,c2,cb,5c,6c,23,6d,57,00,77,6e,c0,02,64,87,00,00,\
  28,00,ff,01,0f,00,01,06,00,00,00,00,00,05,50,00,00,00,db,8c,74,0f,c2,72,73,\
  f3,2b,26,b9,44,77,1e,4f,02,76,63,b5,21,01,01,00,00,00,00,00,05,12,00,00,00,\
  01,01,00,00,00,00,00,05,12,00,00,00
EndRegedit:

StartRegedit:
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\WinDefend]
"DisplayName"="@%ProgramFiles%\\Windows Defender\\MpAsDesc.dll,-310"
"ErrorControl"=dword:00000001
"ImagePath"=hex(2):22,00,25,00,50,00,72,00,6f,00,67,00,72,00,61,00,6d,00,46,00,\
  69,00,6c,00,65,00,73,00,25,00,5c,00,57,00,69,00,6e,00,64,00,6f,00,77,00,73,\
  00,20,00,44,00,65,00,66,00,65,00,6e,00,64,00,65,00,72,00,5c,00,4d,00,73,00,\
  4d,00,70,00,45,00,6e,00,67,00,2e,00,65,00,78,00,65,00,22,00,00,00
"Start"=dword:00000002
"Type"=dword:00000010
"Description"="@%ProgramFiles%\\Windows Defender\\MpAsDesc.dll,-240"
"DependOnService"=hex(7):52,00,70,00,63,00,53,00,73,00,00,00,00,00
"ObjectName"="LocalSystem"
"ServiceSidType"=dword:00000001
"RequiredPrivileges"=hex(7):53,00,65,00,4c,00,6f,00,61,00,64,00,44,00,72,00,69,\
  00,76,00,65,00,72,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,\
  00,00,53,00,65,00,49,00,6d,00,70,00,65,00,72,00,73,00,6f,00,6e,00,61,00,74,\
  00,65,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,\
  65,00,42,00,61,00,63,00,6b,00,75,00,70,00,50,00,72,00,69,00,76,00,69,00,6c,\
  00,65,00,67,00,65,00,00,00,53,00,65,00,52,00,65,00,73,00,74,00,6f,00,72,00,\
  65,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,\
  00,44,00,65,00,62,00,75,00,67,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,\
  67,00,65,00,00,00,53,00,65,00,43,00,68,00,61,00,6e,00,67,00,65,00,4e,00,6f,\
  00,74,00,69,00,66,00,79,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,\
  65,00,00,00,53,00,65,00,53,00,65,00,63,00,75,00,72,00,69,00,74,00,79,00,50,\
  00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,53,00,\
  68,00,75,00,74,00,64,00,6f,00,77,00,6e,00,50,00,72,00,69,00,76,00,69,00,6c,\
  00,65,00,67,00,65,00,00,00,53,00,65,00,49,00,6e,00,63,00,72,00,65,00,61,00,\
  73,00,65,00,51,00,75,00,6f,00,74,00,61,00,50,00,72,00,69,00,76,00,69,00,6c,\
  00,65,00,67,00,65,00,00,00,53,00,65,00,41,00,73,00,73,00,69,00,67,00,6e,00,\
  50,00,72,00,69,00,6d,00,61,00,72,00,79,00,54,00,6f,00,6b,00,65,00,6e,00,50,\
  00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,00,65,00,54,00,\
  63,00,62,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,00,67,00,65,00,00,00,53,\
  00,65,00,53,00,79,00,73,00,74,00,65,00,6d,00,45,00,6e,00,76,00,69,00,72,00,\
  6f,00,6e,00,6d,00,65,00,6e,00,74,00,50,00,72,00,69,00,76,00,69,00,6c,00,65,\
  00,67,00,65,00,00,00,00,00
"FailureActions"=hex:80,51,01,00,00,00,00,00,00,00,00,00,03,00,00,00,14,00,00,\
  00,01,00,00,00,60,ea,00,00,01,00,00,00,60,ea,00,00,00,00,00,00,00,00,00,00
"LaunchProtected"=dword:00000003

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\WinDefend\Security]
"Security"=hex:01,00,14,80,f4,00,00,00,00,01,00,00,14,00,00,00,30,00,00,00,02,\
  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,c4,00,07,00,00,00,00,00,18,00,9d,01,02,00,01,02,00,00,00,00,00,\
  05,20,00,00,00,21,02,00,00,00,00,14,00,9d,01,02,00,01,01,00,00,00,00,00,05,\
  12,00,00,00,00,00,18,00,9d,01,02,00,01,02,00,00,00,00,00,05,20,00,00,00,20,\
  02,00,00,00,00,14,00,9d,01,02,00,01,01,00,00,00,00,00,05,04,00,00,00,00,00,\
  14,00,9d,01,02,00,01,01,00,00,00,00,00,05,06,00,00,00,00,00,28,00,ff,01,0f,\
  00,01,06,00,00,00,00,00,05,50,00,00,00,b5,89,fb,38,19,84,c2,cb,5c,6c,23,6d,\
  57,00,77,6e,c0,02,64,87,00,00,28,00,ff,01,0f,00,01,06,00,00,00,00,00,05,50,\
  00,00,00,bf,55,08,72,3b,e0,28,d0,89,79,4b,f8,91,89,6e,7c,40,25,ec,f4,01,01,\
  00,00,00,00,00,05,12,00,00,00,01,01,00,00,00,00,00,05,12,00,00,00
EndRegedit:
CMD: dir "C:\ProgramData\Microsoft\Windows Defender\Platform"

CMD: ipconfig /flushdns
CMD: ipconfig /renew
CMD: bitsadmin /reset /allusers 
EmptyTemp:
End
  • Vaya a Archivo y selecciona Guardar Como.
  • En la parte de Codificación eliga Unicode o UTF8 según le de la opción.
  • Guardelo bajo el nombre de fixlist.txt en el escritorio al igual que FRST. Esto es muy importante.

¡:warning:ATENCIÓN! El anterior Script de reparación fue hecho específicamente por un miembro del Staff para este usuario, si tiene un problema similar por favor abra su propio tema para recibir ayuda personalizada. Usar Scripts de otros usuarios puede causar daños a su equipo

  • Ejecute Frst.exe. y presione el botón Fix / Corregir
  • Espere pacientemente a que termine y no use el equipo. Al terminar el equipo podría reiniciarse
  • La Herramienta guardara el reporte en su escritorio (Fixlog.txt).

:four: Revisa en windows update si hay alguna actualización disponible: Actualizar Windows - Soporte técnico de Microsoft

:five: En la barra de búsqueda escribe cmd y en la primera opción que aparezca da clic derecho y elige Ejecutar como administrador. Se abrirá una ventana negra. Copia y pega los siguientes comandos linea por linea:

dism /online /cleanup-image /restorehealth

dism /online /cleanup-image /startcomponentcleanup

sfc /scannow

Si alguno te pide reiniciar procedes. Revisa si el ultimo comando te informa si encontro alguna infracción y si la pudo reparar.

Nos traerías:

  • El reporte de FRST (fixlog).
  • Comentarios si el ultimo comando encontró algún problema y lo pudo reparar.
  • Comentarios de como sigue el problema.

Saludos