Windows 10: Windows antivirus defender

please help I have tried so many things to fix this and nothing has worked. I can't update my windows either and it also says the file cannot be found specified for windows antivirus defender.

:)

 

Defender AntiVirus

There are 4 options under Defender. Two refer to AntiVirus; AntiVirus Network Inspection Service & AntiVirus Services. Under Startup Type these two are listed as manual and the Status column said Inspection Service is running. When I clicked on the Start
button in Properties, I got an immediate message: "Win.. Def.. Anti.. Serv.. on local comp.. started and then stopped. Some services stop automatically if they are not in use by other services or programs."

 

How to stop “windows defender antivirus service”?

Hello, *Smile

If you are wanting to turn off Windows Defender Antivirus, then you could use an option in the updated tutorial below. Be sure to turn off Tamper Protection first in step 1.

Turn On or Off Windows Defender Antivirus in Windows 10

 

Windows Defender - antivirus?

Windows defender is a built in antivirus, that detects all type of threats.You do not need to install any 3rd party antivirus.

In windows 7 and earlier Microsoft security essentials was to be used with windows defender for a full system protection, but in Windows 8 and later windows defender's capabilities have been increased to make it a full fledged antivirus.

I suggest rolling with Windows Defender (preinstalled)+Malwarebytes for a full system security.