Comment 70 for bug 220961

David (david-dp-) wrote :

I experienced this problem in a VirtualBox 5.0.25 64-bit VM running on Windows 10 64-bit while trying to install Ubuntu 15.10 64-bit from an ISO.

I've previously installed the same ISO using a slightly earlier build of VirtualBox 5.0 64-bit on a slightly earlier build of Windows 10 64-bit on the same machine, but in that case I was using the built-in SSD of the laptop and this time I tried using an external 2TB Seagate HD.