Windows 10: How to prevent popup "Threats found" from Defender? Partial (!) disabl

Sometimes when I copy large directory trees a popup from Windows Defender appears in the lower right corner telling me:

Virus & threat protection
Threats found
Windows Defender Antivirus found treats. Get Details

A bell rings and the copy operation of this file is aborted.

How can I limit the warning output/action of Windows Defender?

If a threat is found:

- NO popup should appear
- NO bell should ring
- The copy operation should NOT be aborted

However I DO NOT want to completely disable Windows Defender:

The number of found threats in the tiny icon in SysTray should still be increased by 1.
Furthermore I still want to be able to initiate a manual (!) scan over a dir tree by selecting "Scan with Windows Defender" from context menu of File Explorer.

How can I achieve this?

Thank you
Peter

:)

 

Reimage popup

Everytime I use IE the Reimageplus popup appears and wants to scan computer, finds possible threats, repair, pay etc. when defender finds no threats. is there away to prevent the reimage popup?

 

Windows defender false positive - forced to allow threat


Windows defender has started to identify C:\Windows\System32\mshta.exe as a threat [normally reported as a Trojan Powessere.G]. I use mshta.exe to run an hta custom MsgBox - I have been hoping to keep using my current CustomMsgBox tool [batch file calling a vbs-hta file] until later this year when I hope to have had enough time to replace it with a PowerShell alternative.

Windows defender's notification lets me "allow the threat" but that seems to me to be a bigger security hole than is necessary - it will now ignore a potentially real intrusion when all I want to run is a genuine Windows component. My immediate problem is fixed but I would prefer to fix the false positive using the exclusions list.

I cleared the 'Allowed threats history' so I could use the exclusions list instead. I added C:\Windows\System32\mshta.exe to the file exclusions list and I checked that it had taken properly by checking the exclusions list both in the UI & in the Registry. But the exclusion made no difference, it continued to detect and block the exe.

I have repeated the attempt several times [by clearing the allowed threats list & exclusions list beforehand] and the results are the same every time
- allowing the threat works,
- using the exclusions list has no effect.

I studied the relevant tutorial but have not spotted an error in what I have been doing - Add or Remove Windows Defender Exclusions

Does anybody with experience of using the exclusions list to counter false positives have any suggestions for me?

Denis

 

How to disable windows defender for long time?

Hi Andrew,

If I understand you correctly you are willing to disable Windows Defender from your system. I would like to know few more things to understand the issue in a better way.

• Why are you trying to disable Windows Defender? Are you planning to install any third party security software?
• From where you have followed the steps to disable Windows defender using registry?
• Are you logged in as Administrator?

The steps which you have mentioned to disable Windows Defender using gpedit.msc is correct. If you are unable to disable it then you may do that by stopping the service responsible for Windows Defender. Here are steps which you may follow to perform the
same task.

• Press Windows key + R to open run box.
• Type services.msc and hit enter.
• There should be 2 services: Windows Defender Service
  and Windows Defender Network14.
• Right click on each and press stop.

If you will stop the service responsible for Windows Defender then it will not run till it is stopped. Do get back to us with all the information required and result of proposed suggestion. We will be happy to assist you further.

Regards,