Windows 10: I can't update the Windows Defender

I can't update the Windows Defender, can help me?

:)

 

Why won't Windows Defender not auto update anymore

I have have windows updates set to notify updates , I will install myself, because I want to make a system restore point before installing updates.

Because of this windows defender does not update automatically and I had to create a task for updating in the task scheduler, which I did but it does not work anymore since I re-installed windows.
What am I doing wrong?

 

Windows update and windows defender issues

We suggest you to avoid installing any cleaner or anti-virus software that may interrupt the function of Windows Defender. Make sure that Windows Defender is always on. To do this follow these steps:

• On the Start menu, type Windows Defender and hit enter.
  
• Click Settings.
  
• Turn Real-time protection on.

We also recommend you to install the latest update for Windows Defender.

Should you have further questions, feel free to get back to us.

 

SEtting up automatic updates for windows defender on windows 8

I have found this on the internet en have set up a task for automatic definitions update for Windows Defender but a window pops up when this starts to run.
Is there a way to set this without any window popping up so that it just runs in the background?

Now I'm using
"C:\Program Files\Windows Defender\MpCmdRun.exe" -SignatureUpdate -MMPC

I'm currrently using it as described here:
https://forum.raymond.cc/threads/let-your-windows-8-defender-update-itself-automatically.34359/