I had this problem for my hp envy sleekbook....
i turn it on and it didn't boot right!
i tried system diagonistics and everything tested ok !! but it didn't solve the problem...
so ...as a final solution...
I re-flashed the BIOS stock that came with my notebook...
this time....worked...
and i'm writing from it with pleasure...
so....
if this can help anyone who has similar problem.....i'll be glad !!!
