Unmanaged computers
You can view your computers that don't have Sophos Device Encryption installed.
To find computers that don't have Device Encryption installed, go to My Products > Encryption > Computers and select Computers without Device Encryption installed in the encryption status filter.
If you set up synchronization with Active Directory, you must also go to the Unmanaged computers tab. This shows you devices synced from Active Directory that don't have any Sophos protection.