- Oct 4, 2006
- 2,779
- 1
- 81
can you try this mateI have an external USB 3.0 HD(Verbatim 1TB) on my 8.1 PC( connected to native USB 3.0 port),boot time is not slowed on my PC,not had your issue.
disconnect the drive then reboot and time it from the initial bios splash screen till the moment you see the Windows desktop
next, connect your external HDD then reboot and see if the time is the same or not