I am trying to (re-) install Windows 10 Preview on my HP Stream 11 laptop, and somehow I am unable to make the machine boot from USB. I have created the Win10 USB stick using both the Microsoft ...

It ships with HP webOS software, but we’ve also seen Google Android and a number of Linux-based operating systems ported to run on the 9.7 inch tablet.

What is the key to press on an HP Proliant DL580 G5 to bring up the menu option to select the device to boot from? I am trying to boot off the CD, I tried F12 which didn't work.