"Unknown" status under "Virus & Threat protection"

  • Thread starter Thread starter Jim9982
  • Start date Start date
J

Jim9982

Guest
Hi,

I had asked this question more than a year ago, but I received zero feedback, so I want to try again:


I am using Win 10 Home (ver 20H2 build 19042.867).

When I open the Windows Security window, under the "Virus & Threat protection", it reads "Unknown".

When I try to turn on the Real-time protection using "Virus & Threat protection settings", it automatically and immediately turns off without any messages.

On the Protection updates window, "Security Intelligence version", "version created on" and "latest update" entries all read "Not available". Checking for updates makes no changes.

I tried following basic checks:
- I have no other antivirus software installed (before or now).
- Computer restarted several times. No change,

- Windows update is executed: Reports "You're up to date", no flag. (I was able to update from 1903 to 20H2 w/o problems).
- "System File Checker" is executed and no flags,
- DISM CheckHealth is executed and no flags,
- Computer scanned with latest Microsoft Malicious Software Removal Tool: no flags,
- I do not have "DisableAntiSpyware" or "DisableRealtimeMonitoring" entries in the registery (ie under "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\" etc.)
- Tried the checks proposed here: Problems starting Windows Defender in Windows 8/8.1/10. No change.


I also performed following additional checks:
- "Security Center" Service is running, however I cannot Stop/Restart this service (all options grayed out).
- Executing "(Get-Service windefend).Status" in PowerShell as admin gives "Running",
- Executing " Get-MpComputerStatus" in PowerShell as admin gives "A general error occurred that is not covered by a more specific error code.",
- Executing "MpCmdRun.exe -GetFiles, gives MpSigSub.log showing that signatures are upto-date.

Any help towards identifying the root-cause welcomed.

PS:

- Please do not reply saying "reinstall windows": My question is to identify the root-cause. I know how to do "clean install of Windows".

- I am aware of: Windows Defender GUI Malfunctioning
Unfortunately, that does not help, as it is related to specific Asus tool (which is not used on this computer).

ps: I noticed several users having same problem (100+ from my last question). Hopefully some MS experts could enlighten us.


Thanks again,
-Jim

More...
 
Back
Top