Windows 10: Windows Defender missing "Device Security" tab

I am trying to disable core isolation to run an emulator, but I cannot access the "Device Security" tab to do so in Windows Defender. I am using a 1st generation Surface Laptop. Below is a screenshot of my Windows Defender.




:)

 

Windows 10 Windows Defender versus Microsoft Security Essentials

Hi Bryan,

Microsoft Security Essentials was upgraded to Windows defender and it was a default security software from Windows 8. You cannot have both as they are one.

Since you get this annoying popup at the startup i suggest you to disable any Microsoft Security Essentials entries in Startup tab.

• Open the Task manager. by pressing Press CTRL+Shift+ESC.
• click on Startup tab
• Right click on Microsoft Security Essentials entry and click on Disable.

Restart the computer and check if that helps.

 

windows defender detected error0X8050800c

Hello,



This error indicates that there might be a problem with your security product. We suggest that you follow these steps to update the definitions on your Windows Defender:

• Update the definitions. Either click the Update definitions button on the Update tab in Windows Defender, or download the latest definitions from the Microsoft
  Malware Protection Center.
• Run a full scan.
• Restart the device and try again.

If you need further assistance, don’t hesitate to reply on this post.

 

Security Tab missing

Hi Raffi,

The issue that you’ve encountered when trying to access the files from your external storage on your Windows 10 computer may be caused by some configuration or files mismatched. To sort out your concern, we’d like to know the following information:

• Were there any changes that happened prior to the issue?
• Which version of Windows are you using?
• Have you installed the latest update on your PC?

Note: You may check the version of Windows that you are using by clicking
Start, type Winver and press Enter. Additionally, to check for the latest update, go to
Windows Update by clicking Start > Settings > Update & security and click
Check for updates. It will scan and install all the latest updates available for your device.

On the other hand, we suggest that you run the System File Checker (SFC) tool
to scan and correct if there’s a possible integrity violation on the system. To do this, you may follow the steps provided on this
link.
Once you’re on the page, you may expand and proceed with the steps from the
Windows 10, Windows 7, or Windows Vista option under the Run the System File Checker tool (SFC.exe)
section, and then complete the process. After completing the given steps, you may check if you’re able to use your device properly.

We’re looking forward to your response.