Boot device not found

[Giovany]

When starting my Hp Stream I get a message saying q boot device is not found. I tried clicking "f2" and getting into System Diagnostics. I've been able to run a memory test and its passed but when trying to run a system test nothing happens. 

[WAWood]

@Giovany 

Ordinarily, when a laptop no longer boots into Windows, this means that the boot records (known as the BCD) have become corrupted due to a failing drive and running diagnostics confirms this to be the case. Folks then replace the laptop drive, use the HP Cloud Recovery option and a 32GB USB stick to make recovery media, boot their laptop from that media and do a full restore.

With this PC, this is a much more difficult situation.

First, this PC does not actually have a laptop hard drive. Instead, it has a memory stick configured to work like a "disk drive" -- so, it has a stick of EMMC memory instead of an HDD. This is very small, usually 32GB, so it is too small to do any major Windows Updates since Windows takes up nearly all of the "drive".

Second, the SSD, unlike the SATA SSDs in other laptops, can not be replaced by the consumer. So, when it fills up, you can't replace it with a larger one. And when it fails, you can't replace it with a new one.

Thus, you can try running diagnostics to test the drive -- but if it fails, you will have to take this PC to a laptop repair facility to have them replace the SSD. You can not replace it yourself.

To check the drive you have to follow these steps:
1) Press Esc key repeatedly, several times a second, while rebooting the laptop. Do NOT hold the key down, just press it over and over.
2) Eventually, you will see an HP Startup Menu
3) Press the Function key for testing the hard drive (usually F2) and let it run.

[The1967one]

had boot device not found error 3FO, took zip drive  32g to library .used desktop to down load instalation medea windows 10 from microsoft web site .first time tried to reinstall failed ,went into bios enabled everything and tried again failed . go into bios again disabled secure boot and turned off laptop . with laptop off reinserted zipdrive turned on laptop hit escape .and then F9 select disc usb zipdrive and reinstalled OS .soon as it states HP on screen remove zipdrive

[The1967one]

someone with average hands can replace the drive in these loptops google replace drive in HP stream to find videos on it