Windows 10: Problem with Defender Anti Virus after big update in September.

I keep getting a issue pop up where they're unable to remove "Trojan:Win32/Dorv.D!rfn" (it says Remediation incomplete over and over) -- I've looked into this issue (apparently it's located in the CPU, which IDK what that means) but a bit of people say it may be a false positive. Has any other people had this issue?

submitted by /u/RobLives4Love
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:)

 

Anti Virus Problems

You should not be using more than one anti-vrus program on your computer. Read the
IMPORTANT NOTE about not using more than one anti-virus program in this

topic.

The inability to turn on Windows Defender 8/10 is typically the result of having a third-party anti-virus installed or failure to remove it properly (completely). Since Windows 8/10 Defender includes anti-virus protection, it is
disabled during the installation of another anti-virus program. If a trial anti-virus (i.e. McAfee, Norton, etc) came
preinstalled on your computer or you installed one, Windows Defender will be turned off (disabled). Windows Defender recognizes the install and automatically disables itself when other anti-virus products are used
to avoid conflicts. Windows Defender will remain disabled until that anti-virus software has been completely uninstalled. In some cases, you may need to download and run the anti-virus vendor's clean up tool to remove any remaining
remnants.

• Replacing your Anti-virus - List of Antivirus Uninstallers and Removal Tools
• Microsoft Wiki: List of anti-malware product removal tools by Stephen Boots,
  MVP

After removal of the third party anti-virus, Windows 8/10 Defender needs to be
activated if you choose to use it. When uninstalling the third-party anti-virus Defender should automatically turn itself on but sometimes you may receive a message indicating
your system has no protection...click here to turn on Windows Defender. If not, and Defender remains disabled, you will need to manually turn it on.

• How to turn Windows Defender On or Off in Windows 10
• How to turn Windows Defender On or Off in Windows 8

 

How to scan anti-virus with windows Defender?

For windows 10, I would like to know on how to scan anti-virus with windows Defender, when I select a file and right click, there is no anti-virus for scanning for windows defender and how to make windows defender update automatically?

Does anyone have any suggestions?

Thanks in advance for any suggestions

 

Win10 Defender anti-virus disabled

I have a fully updated Windows 10 laptop that had no less than 4 anti-virus programs on it and numerous other "junk". Even after a complete cleanup via programs uninstall, my Defender anti-virus will not turn on even though all the other Defender functions
have a green checkmark indicating that they are working. The message is that Defender is controlled through my organization.

This is a stand-alone laptop that is NOT on a domain. There is no "organization" to which it answers, just me. Any suggestions?