Windows 10: 'Virus and threat protection' turns itself off

Hi,


I have Windows 10 pro.


Today, 'Virus and threat protection' turned off by itself. Restarting it from the Windows Security window didn't work; the restart button didn't give any feedback and after a while threw some error which I don't remember the wording off. So I had to go to services and manually start the 'Windows Defender Antivirus Service".


After starting that, the 'Virus and threat protection' stayed on for several minutes and then went back to being off.
I did this several times and every time it turns itself off.


While looking for solutions, I noticed that my 'Windows Defender Security Center Service' is missing altogether from the services list. I don't know how to bring it back but I'm guessing my problem may be connected with this.


so far:

• I check policies, windows defender isn't off from there
• I checked the registry of Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender and there's no registry disabling the Windows Defender there
• I also checked Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WinDefend and Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SecurityHealthService and Start has values of 2 and 3 respectively.
• I ran these
  • regsvr32 atl.dll
  • regsvr32 wuapi.dll
  • regsvr32 softpub.dll
  • regsvr32 mssip32.dll
• the first three successfully ran while the fourth one doesn't show up at all.

Can anyone help me with this please?

:)

 

Virus and Threat protection

NOTICE: After, installing 1909 update, Windows Defender, Virus and Threat protection, is / was "OFF". IS this common? Is this a bug? NO MESSAGE appeared in my Notification Area.. ONLY, by chance, did I notice, and turn it back on. I'd suggest.. AT
ALL TIMES.. 'WHENEVER' MY virus protection is turned off.. BY DEFAULT... I 'SHOULD' BE NOTIFIED! YOUR thoughts on this?

 

Virus threat protection

Hi Valentin

As an alternative approach, you can allow that utility through the Controlled Folder Access section of WIndows 10 security . . .

Open Windows Defender Security Center

Go to Virus & threat protection - Virus & threat protection settings

Scroll down to Controlled folder access

From there, you can add Dell Data Vault to the list of safe or allowed apps to prevent it from being blocked

Please do not leave Controlled Folder Access turned off permanently

 

Cannot turn on virus and threat protection

When I try to turn antivirus protect on I get the message "your virus and threat protection are managed by your organization"