Windows 10: I can't turn on my windows security : windows defender antivirus

it is grayed out , i can't change any ... who can help me ?




:)

 

Security Centre reports Kaspersky and Windows Defender turned off

In Windows Settings / Update and Security it only has Windows Defender in the list on the left hand side, this reports "The settings for Windows Defender Antivirus aren't available because it is turned off"; then gives the option to Turn on Windows Defender Antivirus.

In old-style Control Panel / Security and Maintenance, under the Security heading, it reports Windows Defender Antivirus and Kaspersky Internet Security are both turned off, and gives a button View Antivirus Applications. This shows the dialogue box I mentioned in the OP which lists the two installed virus protection applications: Kaspersky Internet Security - Off, Windows Defender Antivirus - Snoozed.

Kaspersky reports Your Computer is protected and can be seen in Task Manager to be running and consuming resources.

As Windows - falsely - claims neither is running there's no option to turn one off.

I'm wondering whether it started with this week's Windows updates.

I might try uninstalling and re-installing KIS to see if it makes any difference.

 

Is Windows Defender a proper Antivirus for Windows 10 ?

1) Yes.

2) Yes.

3) Many. Suggestion to use your preferred search engine and look it up. Also see:

https://support.microsoft.com/en-us/help/18900/consumer-antivirus-software-providers-for-windows

Suggestion to read:

• How to Use the Built-in Windows Defender Antivirus on Windows 10
• Configure Windows Defender in Windows 8, 8.1 and 10
  
• What’s the Best Antivirus for Windows 10? (Is Windows Defender Good Enough?)
• Choosing an Anti-Virus Program
• Supplementing your Anti-Virus Program with Anti-Malware Tools
• Answers to common security questions - Best Practices

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4) Are you spamming?

 

avast free antivirus vs windows defender

>it's true that Avast Free Antivirus is better by a lot compare to windows defender?

As
BulldogXX already mentioned: That's a matter of opinion.

Suggestion to read:

• Choosing an Anti-Virus Program
• Safe Steps for Replacing your Anti-virus - Why should you use Antivirus
  software?
• Supplementing your Anti-Virus Program with Anti-Malware Tools
• Best Practices for Safe Computing - Prevention of Malware Infection
  

Suggestion to watch: