Virus Scan Failed - Intune Windows 11

chickenriceandbeans — Tue, 10 Jun 2025 11:56:04 GMT

I am seeing a "virus scan failed" error on Intune-managed computers when downloading files.
Additionally, I found something strange... Microsoft says the Attachment Manager setting should be under Computer\HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Attachments. I set the value there via a policy (value 1), but the computer doesn’t seem to react—as if the setting has no effect.

However, I discovered that the same setting also exists under Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Attachments. Changing the value there made file downloading work. I also checked with Procmon and saw that Edge actually reads the value from HKLM—so it seems the problem is related to how Edge handles policies.

I am using the reference from this link for the setting, but I have no idea how this setting is being added under HKLM.

https://learn.microsoft.com/en-us/windows/client-management/mdm/policy-csp-attachmentmanager?WT.mc_id=Portal-fx#attachmentmanager-notifyantivirusprograms

Re: Virus Scan Failed - Intune Windows 11

Kasun Bandara — Tue, 10 Jun 2025 13:11:48 GMT

@chickenriceandbeans hi, i am suggesting to ask this question in Microsoft forum.

topic Re: Virus Scan Failed - Intune Windows 11 in Endpoint Security

Virus Scan Failed - Intune Windows 11

Re: Virus Scan Failed - Intune Windows 11