Boot Device Not Found problem

[Brutt]

Power outage caused Boot Device Not Found (Blue Screen)

Hard Reboot doesn't work

Need Help!

[WAWood · Accepted solution]

@Brutt 

You mentioned a power outage and if your PC is NOT connected to a device that provides power spike protection, there is a distinct possiblity that SOMETHING got damaged in the PC.  If it was the motherboard, you would not be able to boot.

These problems are generally due to one of two basic problems:
1) Failed hard drive
2) Corrupted/missing boot loader files

As to the first, please follow the directions in this link for testing your hard drive http://support.hp.com/us-en/document/c00439024

If that confirms your drive has failed, then you need to replace it. Please report back if that is the case.

As to the second, you will need access to a working PC for this step in order to create the media needed to repair your PC boot loader.

Follow the instructions below to create boot media from Macrium Reflect (MR) that can be used to rewrite/repair the boot media on your PC:
1) Download and install Macrium Reflect (MR) from this link: http://www.macrium.com/reflectfree.aspx
2) Use the option to create a boot USB stick or CD

That will create MR bootable media. Then, you can boot your PC into WinPE using that media.

Have patience, as that can take a while to start and bring up the screen.

Once the screen is there, select the option to Fix Windows boot problems. It will then search for the OSs installed and list them, Select the one you want to repair and click Next.

It will now do the repairs, listing the things it has done.

When finished, select the option to Restart the PC.

When done, your PC should boot OK. If it does not, there is a more serious problem.