Error when trying to install Windows 10 1809 on external SSD

[admin]

Hi,

I'm trying to install Windows 10 1809 (from an ISO downloaded using Microsoft Media Creation Tool) on an external SSD (it's actually an internal one connected through a USB enclosure), but I'm getting the error: "The operation may damage the current Windows installation". I'm attaching a picture of the error below. I'm running WinToHDD from a Windows Pro machine registered using a Microsoft Dreamspark (student) key.

May I ask if the Windows operating system you are currently using is started from this USB? WinToHDD does not allow Windows to be installed on the disk where the current system resides, as this will cause the current system to fail to start.