Non system disk o disk error

Hi after the installation into a HP 620 core2duo, and trying to start the laptop, always appears that message. If I want to start fydeos I have to press F9 go to bios, select EFI, salect boot, select fydeos 64…
In other similar laptop, compaq core2du,o the installation was succesfull and start ok.
Any idea how to solve the problem?