Solved! Btw i had to reinstall windows from a usbdrive (because NONE of other troubleshooting options worked)which was the hardest part: after booted from usb stick (win 10) none of any option worked only reinstall (clean) after it started need a restart.
After that it didnt see the hdd so it went back to its looping (and sometime freeze leave on the webcam light with black screen. I tried it a 6-10 times, but nothing happened. I got angry and plugged out the charger ( the installer ORDERED me to stay plugged in). The miracle happened , after plugged out , it magically started too “feel the disk”, and i can continue my reinstallation. After ingored the loss of personal data reinstalled the Win8(!) drivers , it seem to work as it was. So if this post might helpful keep, any other situations it can deleted. Cheers…