How can I exclude mapped network drive in security essentials 'full scan' mode?

One more thing...

You can manually exclude scanning of network files by going to :

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft Antimalware\Scan  in Start > Run > regedit

[You may have to change the permissions on the key by taking the ownership of the key from advanced tab and give write permissions to yourself]

Right click > New DWord value

Set the value to be 1
Set the name to be DisableScanningNetworkFiles

So the key should look like this

DisableScanningNetworkFiles            REG_DWORD      0x00000001 (1)

Let me know if this solves the problem... Else we would need to consider adding a feature like this - if it indeed turns out to be a significant issue.

Sincerely,
~Shiroy Choksey [MSFT]

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This posting is provided "as is" with no warranties, and confers no rights.

It is not possible to exclude mapped drives, since drives are mapped in the context of the user, (in case there are multiple users on the system) while MSE works in the context of the system. You could, however, exclude the actual network paths to which these drives point, which would result in MSE excluding these drives.

To do this you would have to make some changes to the registry as explained below.

You can manually exclude a network share by going to :

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft Antimalware\Exclusions\Paths  in Start > Run > regedit

[You may have to change the permissions on the key by taking the ownership of the key from advanced tab and give write permissions to yourself]

Right click > New DWord value

Set the value to be 0
Set the name to be the share you are trying to exclude.

\\server\share : 0

By default we should *not* be scanning mapped network drives - I will investigate this further and see what could be the problem.

Sincerely,
~Shiroy Choksey [MSFT]