A USB removable drive is mounted as a folder in the operating system rather than a drive, using Disk Management of the OS. The disk is physically removed without being unmounted in disk manager. When an on-demand scan runs (right-click or scheduled) it delivers error a0200006 to the console.
First seen in
Sophos Anti-Virus for Windows 2000+
It is indicating that anticipated data is unavailable.
What To Do
There is no resolution to the issue as the product is operating as intended.
If you do not want to see these errors appearing on the Enterprise Console, “blacklist” them from appearing on the console, as described in the knowledgebase article Sophos Anti-Virus for Windows: suppressing Event ID errors on endpoint.
For more information see also: