Hi nic
first of all thanks for your responses and monitoring this issue.
After you first response today.. i went see what is the driver version on hd 4000 on device maneger-display adapters and shows that the driver version installed is 3345 (on dxdiag you see "microsoft basic display driver", and i'm sure that is it who works)...reboot
After uninstall hd 4000 drivers still hd 4000 with the old 3316.. and uninstall too. reboot
After rebooting... the display adapters were AMD and Microsoft basic display driver.... but in a few secons last one became hd 4000 (3316 driver version) i don't know how.
I then installed 3345 driver version without problems.
And finally the last bios version for hp probook 4540s from link posted.
I restarted again ... the situation is the same.
When enable amd... black screen.. reboot and amd its ok but hd 4000 code 43.
I can see on my new dxdiag on screen data "microsoft basic display driver" but 3345
appears correctly installed.