Windows 10: Microsoft Defender Antivirus - Cannot Connect For Updates

HelloI'm a 70 year old user and was using Microsoft Security Essentials in my older Desktop with W7 Pro. Now I have a new Desktop with Windows 10 Pro and its my understanding when I formatted, I also installed Microsoft Defender Antivirus? Correct? However during format I wasn't connected to the internet and now when I try to update Microsoft Defender Antivirus I cannot connect ... Instead I get a prompt which says contact the IT Dept.???Its my understanding 'Microsoft Defender Antivirus' is the same as or replaced Microsoft Security Essentials? Correct? If so can someone help me connec

:)

 

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

 

Defender AntiVirus

Hello,

Thank you for sharing this to Microsoft Community. Let's try to start Windows Defender services and see if it helps. Follow these steps:

• Press Windows + R key and type
  
  Services.msc and press Enter.
• Search for the service "Windows Defender".
• Right click on "Windows Defender" and click Properties.
• Click Start button.
• Click Apply and Ok to save changes.
• Restart the computer and check.

Let us know how it goes.