Windows 10: Defender won't clear threats and/or has caching issue

I keep receiving notifications that Windows has detected multiple threats. I have attempted to delete/quarantine/clear cache and nothing I do is working. It still says there are "Current Threats".I received a notification of 3x Trojans see pic right below. I went to the file location and the WDF.exe does not exist yes I have hidden files turned on.I told Defender to Quarantine and Delete, but nothing happensNext step, I ran Defender in OFFLINE mode. No new threats were detected... Still shows the TrojansNext step, I SHIFT + DEL the entire \Local\Google folder in an attempt to permanently

:)

 

Clearing Windows Defender history

Hey, what you need to do is so simple, just follow the steps below exactly in order:

1. Turn OFF Real-time Protection
2. Turn OFF Cloud-delivered Protection
3. Go to this folder C:\ProgramData\Microsoft\Windows Defender\Scans\History\Service
4. Delete the contents in the folder
5. Turn ON Real-time Protection
6. Turn ON Cloud-delivered Protection

That's it... Now check protection History, it's empty.
Done!

 

I'm having an issue with a MS Defender Threat Alert

Hello All. I'm having an issue with MS Defender. I always scan RAR files with MS Defender and Malwarebytes before unpacking. The other day, I scanned a RAR file and MS detected a trojan (Malwarebytes did not detect anything). So, to avoid any potential threat, I just went ahead and deleted the RAR file without unpacking it. However afterwards, since MS detected a threat during the RAR file scan, it of course gave me an alert. In the Virus & Threat Protection window it gave me the prompt to Take Actions (quarantine, remove) and I clicked the button to proceed. However, since the file was already deleted, it seemes to be "confused" on how to proceed and just stays stuck on the Threat Detected prompt. I should have let Defender remove the file itself, but I got trigger happy and deleted it myself. So, even though the threat is gone (I ran a Full Scan with Defender and Malwarebytes to be safe), it won't clear out of the Threat Alert because it can't resolve the issue by removing or quarantining the detected file. The only way to clear the Threat Alert is to put the nonexistent threat in the Allowed Threats list, but I obviously don't want to keep it there in case I encounter this threat again. So, how do I get rid of this Threat Alert? Any help and insight would be greatly appreciated. Thanks.

 

Problems with clearing cache with Microsoft Edge

Hi Destin,

Thank you for posting your query in Microsoft Community.

I understand your concern, and we in Community will try to help you in the best possible way we can.

I would suggest you to follow the below steps to clear the cache from Edge and check if the issue persist.

• 
  Open Edge browser.
  
• 
  On the top right corner click on the three dots
  
  
• 
  Then below click on Settings
  
• 
  Under clear browsing data
  
• 
  Tap or click on Choose what to clear
  
• 
  From the list check cached data
  and files, browsing history
  
• 
  And click on clear.
  

I would also suggest you to clear all temporary files from your computer and check if it helps:

• Press Windows+R key on the keyboard.
• Type %temp% and hit Enter.

Try the SFC scan to resolve the issue. SFC scans the corrupted files and recover it automatically.

To run the SFC/SCANNOW command in Windows 10:

• 
  Left click on Start button.
  
• 
  Right click on Command Prompt (Admin) option which will let you run
  'Run as administrator’.
  
• 
  Command Prompt Window pops up.
  
• 
  Type: SFC /SCANNOW
  

You can also follow the link below for reference:

Use the System File Checker tool to repair missing or corrupted system files - Microsoft Support

I hope the above information was helpful. Get back to us with the updated status and we will be happy to assist you further.