How did you load Windows on the new HDD? Did you do a clean install on the new HDD or clone the original HDD onto it? Either way, if the original HDD is still installed, have you tried disconnecting it from the motherboard? Reboot and tap F2 to open BIOS setup. Make sure Windows Boot Manager is first on the list of boot options. Be sure to save the change, if you made one, before exiting BIOS setup...
Windows 10 I install this :Seagate Barracuda 2TB Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 7200 RPM 256MB Cache 3.5-Inch – (ST2000DM008/ST2000DMZ08). But, it doesn't boot at first try when cold, boots the second try. The Seagate sites says something about bios setting. please help
XPS 8900, won't boot on first attempt