Windows 10: Defender not scanning mapped drive

Hi,


I'm trying to schedule scanning mapped drives using Defender via the command prompt and task scheduler.


The command i'm using is:


"C:\ProgramData\Microsoft\Windows Defender\Platform\4.18.2005.5-0\MpCmdRun.exe" -Scan -ScanType 3 -File "E:\Archive"


I'm getting the following error when trying to scan


Scan starting...

CmdTool: Failed with hr = 0x80508023. Check C:\Users\uoh0079\AppData\Local\Temp\MpCmdRun.log for more information


and the log file says:




MpCmdRun: Command Line: "C:\ProgramData\Microsoft\Windows Defender\Platform\4.18.2005.5-0\MpCmdRun.exe" -Scan -ScanType 3 -File "E:\Archive"

Start Time: ‎Thu ‎Jun ‎18 ‎2020 16:07:54



MpEnsureProcessMitigationPolicy: hr = 0x1

Starting RunCommandScan.

INFO: ScheduleJob is not set. Skipping signature update.

Scanning path as file: E:\Archive.

Start: MpScanMP_FEATURE_SUPPORTED, dwOptions=16385, path E:\Archive, DisableRemediation = 0, BootSectorScan = 0, Timeout in days = 1

MpScan started

Warning: MpScan encounter errror. hr = 0x80508023

MpScan was completed

ERROR: MpScandwOptions=16385 Completion Failed 80508023

MpCmdRun.exe: hr = 0x80508023.

MpCmdRun: End Time: ‎Thu ‎Jun ‎18 ‎2020 16:07:54




I can scan the C drive using the same command and i can also scan the E drive using the GUI. I have access to the drive, so don't think it's permissions. Can anyone suggest what i can try to get this work?

:)

 

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.

 

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I have Defender Windows 10. I tried using custom scan to select and scan external drives. The screen listing the drives comes up, but the "OK" button remains grayed out so unable to scan any of the drives listed. Any suggestions would be appreciated.

 

All scans of mapped drive fail (full, quick, custom)

Hi! I'm having a problem with the Custom Scan operation in Windows Defender. I use this frequently on my local machine, but when I try to scan my NAS (mapped as "H") it fails taking anywhere from several seconds to 13-minutes but always showing 0 files scanned. The topology is all gigabit ethernet: Desktop > LAN > switch > LAN > NAS. My computer is part of a small workgroup, DHCP is handled by LAN-wired router, and the NAS is a Drobo. I'm running Windows 10 Pro x64 v1909 build 18363.778

I have tried the following:

• Tut 70530 Local Group Policy Editor | Include Mapped Drive on Full Scan -- no joy
• Tut 70530 Registry hack | Include Mapped Drive on Full Scan -- no joy
• Tut 152869 Registry hack | Scan Network Files -- no joy

It seems no matter what I do I can't get WD-AV to scan my mapped NAS or any part thereof. I did just see that the latest definitions broke WD, so maybe that's it. Both registry hacks above are still in place, I put the policy setting back to default.
Any suggestions?
Thanks,
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