Your description is incomplete. There is probably an error message reporting the problem. Maybe it is telling you that there was no bootable device found.
Did it work before? Does the BIOS detect a hard disk? Did someone format the hard disk?
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If the hard disk is working, you can always reinstall any OS using a bootable USB device. You may also try to reinstall from the original recovery partition, if it wasn't deleted from the hard disk.
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If the hard disk is working, you can always reinstall any OS using a bootable USB device. You may also try to reinstall from the original recovery partition via BIOS option if it wasn't deleted from the hard disk.
Your description is incomplete. There is probably an error message reporting the problem. Maybe it is telling you that there was no bootable device found.
Did it work before? Does the BIOS detect a hard disk? Did someone format the hard disk?
If the hard disk is working, you can always reinstall any OS using a bootable USB device. You may also try to reinstall from the original recovery partition, if it wasn't deleted from the hard disk.