I have problem with my laptop Samsung NP300-E5C-A02PL. I had there Linux Ubuntu, but I decided to change system to Windows 10 (It was working before... let's say 1 year ago).
At the boot time I only can see black screen or screen like below:
I'm not able to boot from disk or even get into BIOS.
I read lots of posts about similar issue, but nothing helped, so I decided to ask you about it. I've already tried:
- using other keys on boot (F3 works for booting from CD, F8 or F9 from USB)
- using external keyboard on USB and pushing F2 and other keys
- take off BIOS battery for 30 sec
- connect together pins RESET on the motherboard for 30 sec
- install Windows 10 using MBR (diskpart -> convert mbr)
- install Windows 10 using GPT (diskpart -> convert gpt)
- install Ubuntu (old - 9.04) on other partition
At the boot time I only can see black screen or screen like below:

I'm not able to boot from disk or even get into BIOS.
I read lots of posts about similar issue, but nothing helped, so I decided to ask you about it. I've already tried:
- using other keys on boot (F3 works for booting from CD, F8 or F9 from USB)
- using external keyboard on USB and pushing F2 and other keys
- take off BIOS battery for 30 sec
- connect together pins RESET on the motherboard for 30 sec
- install Windows 10 using MBR (diskpart -> convert mbr)
- install Windows 10 using GPT (diskpart -> convert gpt)
- install Ubuntu (old - 9.04) on other partition