I'm unable to block external USB HDD's on Windows 10 using DLP 10. After trying a few different approches with both Removable Storage Device rules and Plug and Play device rules, I found that for some reason Windows 10 is assigning a device GUID to these devices that matches the device GUID of the internal HDD. I found that this GUID is whitelisted by default in the SCSI and RAID Controller device class which may be why none of by blocks are working. I've so far not been able to find a way to block these devices on Windows 10. Is there a built-in device template I can use that will or possibly a known-working rule configuration?