Windows 10: Is MS Windows Defender a free program?

I was trying to check and see if Defender was turned on and when I did, I was asked to SUBSCRIBE to Defender through MS 365?

:)

 

Why did the startup window get cleared?

I didn't missed any step, the list was gone and gone , even after using lot of programs the programs were not listed in that list.

 

MS Defender Won't Load After Upgrade to Windows 10 Ver 1511

Attempted every step in document provided by Microsoft

Redirecting

Nothing worked, HOWEVER, the last step is to Delete Conflicting Registry Entries. My registry contains one of the entries listed (MsMpEng.exe) however, REGEDIT could not delete this entry as I was directed.

Problem still exists; as soon as I start MS Defender, it stops.

Any further suggestions?

 

Windows Defender problem

Hi Ernst,

To troubleshoot this issue, we suggest that you check the Windows Defender service if it's running. If you are using a third party spyware/malware program, it may disable the Windows Defender service. To do this, please follow the steps below:

• Press Windows + R key.
• Type services.msc.
• Right-click Windows Defender service and click
  Start.

Let us know the result.