Why does my computer doesnt recognize a flash drive

[leilaakridgesmith]

Hello,
My computer will not recognize my usb drive when i have turned off the computer and have gone to the bios and selected it to boot from usb 1st. it just surpasses it. when i hit f-12 it jus shows the cdrom and the hard drive to boot from. please help, thank you.

 

[nhasian]

some computers do not support booting from a usb thumbdrive. you could try to update the bios to rectify this.