08-30-2016 11:41 AM
Allow me to welcome you to the HP forums!
I read your post about no boot device found and wanted to help.
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.
Once you have that, please download and create Win10 install media from this link: http://windows.microsoft.com/en-us/windows-10/media-creation-tool-install?ocid=ms_wol_win10
Yes ... I know that is for Win10, but it uses the same generation boot loader as Win8x, so it can be used to do boot loader repairs for Win8x as well as for Win10.
Boot from the media you created, and follow the directions in this link: http://www.windowswally.com/how-to-fix-error-code-0xc0000185/
You will probably have to run Startup Repair three times for it to fix all the boot loader problems.
When done, your PC should boot OK.
***Please mark Accept As Solution if my post solved your problem***
I am a volunteer and I do not work for, nor represent, HP