I have change disk with AOMEI program from gpt to mbr but my laptop directly going to bios setting and i have no any choice:(

[Yaser_1]

I have changed my disk patition from gpt to mbr after reboot i dont have any os and my laptop directly going to bios and i have no any boot option.

 

[popatim]

What lead you to believe that you would be able to boot after doing that?
I hope you made a backup before messing with your drive.