I have a branded HP laptop and unluckily, I cannot begin it up generally. My HP laptop is showing the message, “Boot device not found” error. It also indicates that install an operating system on your hard disk. I don’t know actually what it is. I am extremely confused about resolving this technical bug. I don’t have ideas about this technical glitch. I think that I need technical help from some experts. What should I do, when I get Boot device not found HP laptop? Please share some right steps for solving it.