windows wont boot

Dec 12, 2018
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Hi,
I have this evil hp elitebook 8640p second hand, with changed hard to kingston 120 ssd .
Worked fine about a month, till the night it went black.
I have checked the ssd - test passed on bios
Reseated the ssd and flushed some dust.

But windows wont boot.
Errors I get are:
Boot device not found, Hard disc 3f0

Ive ran a bootable flash, wont boot
Checked formats and boot order, nothing happened.
The farest Ive reached is black screen.

After Ive scrolled net topics on the matter im clueless.
Would be happy at some help cause it starts to get me crazy.
 
Dec 12, 2018
3
0
10
bios is 2012 ver. I removed it, yes.

ive made it to black screen of doom after windows logo on the bootable flash.

it recognized flash, booted, windows logo showed, end of journey.
 
Dec 12, 2018
3
0
10


Thank You alot! You made me think over bios, i formated ssd from bios, checked all settings, unplugged mouse....and im installing the win atm.
So woohooo!