Can't boot from recovery flash drive

[Anakunda]

Greetings, used the Recovery media builder from the tools menu. Chosen USB Flash drive and standard Paragon rescue package. Flashed everything OK, but the problem is, when I reboot with that flash disc inserted, the computer boots normally. Is there need to press a hidden key or something?

I use AMI BIOS, the order of boot devices is following: 1.removable media, 2. CD/DVD, 3.HDD, 4.Network

[SIW2]

Are you able to boot other flash drives?

May be a setting in the bios.

[Anakunda]

Don't know, I don't have more bootable flash drives

is there tool to check if the pendrive is bootable to know if that's bios or the flash drive?

[fireworker]

In some BIOS Setup you must choose the first drive - connected flash drive. (in "Hard disk priority" entry)

[Anakunda]

yeah I got it setup.
boot devices order = 1.removable media 2.dvd 3.hdd 4.network

there's nothing like usb drive, just removable media