Windows 10: Windows Defender doing routine scans while being off

So, today, for some reason, Windows Defender started ignoring that Real-time protection is offand did routine scans, and falsely flagging multiple programs, that are importantIssue startFalse FlagsReal-time protection and tampering offdoing routine scan while offalso, it does search, quarantine and sometimes removes files in exclusion folder

:)

 

defender scans

Hi Ian,

Thanks for posting your query on Microsoft Community.

This issue might occur if you have set any task scheduler for Windows Defender.

I suggest you to delete the task for Windows defender and check if it helps.

Follow the below steps:

• 
  Search and open Schedule tasks.
  
• 
  In the left-hand menu, open the Task Scheduler Library, then select
  Microsoft >Windows >Windows Defender.
  
• 
  Double-click Windows Defender Scheduled Scan.
  
• 
  Select the Triggers panel, then select Delete.
  

Hope it helps, reply to us with the status of your issue. We will be happy to assist you.

 

Windows 10 Anniversary Update Issues

Problems with W10 Anniv auto update:

Mom's: (x58 Xeon 5677) Windows Defender was not turned back on automatically (it was "on" in the 1511 edition) and she had a Trojan. Full system scan to eradicate.
Her Epson printer was knocked off, had to uninstall by Device Manager pull USB cable and reconnect cable. W10 did the rest.

Step-mom's: (HP pre built) Windows Defender not turned back on by default. Her USB Seagate Expansion Drive 2Tb was offline so all backup routines were halted. Had to rerun backup plan. Had her do a full virus scan.

Step-dad's: (Dell Optiplex tweaked upgrades) Windows Defender not turned back on by default. Full Scan.

 

Windows defender custom scan does not scan external drives

Hi Joe,

to scan external drives using Windows Defender, follow the steps provided below.

• Open Windows Defender.
• Go to Settings tab.
• Select the Advanced option.
• tick the checkbox for Scan removable drives.

Regards.