This is what worked from me. You do this from within the aptio screen:
followed the steps given in the tomshardware reference above, from db2k9:
"Ok so I figured it out guys, it was kind of silly but here we go.
So this system is sort of a hybrid legacy and EUFI system, and there a few steps I needed to take to get it to recognize devices that aren't the original HDD
First I had to the Security Options of the BIOS and disable "Secure Boot"
[then you reboot, and it comes back to the aptio screen. So then you do the next step]
After that go to the Boot section of the BIOS and
- Disable Fastboot
- Enabled CSM (Compatibility Support Module)
[then you reboot again, and it should get through the aptio piece, if you even see it]
- This will allow the BIOS to see other bootable drives (For some reason it keep on being disable when I would restart, so that's why I couldn't see my SSD)
[the rest below didn't apply to me, I'm using Win 8.1, and there's only the one SSD]
I have a beautiful ASUS TAICHI, that I picked up as a refurbed return from MicroCenter, and since it had no bloatware or recovery partition on the SSD, I think they either replaced the original or reformatted it. When it hit the repeating aptio screen, I was ready to take it back, until I found the above. It worked for me, so give it a try.
See if it works for you