Operating System not found, Windows Boot Failed, Windows 7, 8, 10 on Dell Laptops

Mob. No. Plz

Laptop to Nahin Chala bhai

Please help me why no Bois not opening

Thank you very much.

My leptop can not see boot list

My laptop Lenovo has no boot mod

Thank you very much

di boot mode tidak muncul pilihan bg cuman USB storage hard Drive CD DVD RW Drive sama removable device

coba dua2nya (UEFI & legacy) tetep gak berhasil masuk. laptop dell Vostro

if my computer can not see the boot list option what should i do

I tried several time with install a new windows 10 through bios with bootable usb but it shows the same error os not found I'm also try usb with all the ports

i need help plz

Tolong laptop saya tak ada boot mode