Currently I have Ubuntu installed on my HDD, and I want to install Windows on the same hdd. I have already seen this post How can I repair grub? (How to get Ubuntu back after installing Windows?). I have created USB stick with Ubuntu on it using Unetbootin but when I try to boot from it, I get these options:
- Try Ubuntu without installing
- Install Ubuntu
- OEM install
- Check CD for errors
That is in UEFI mode (in boot menu there are two entries for my USB stick: with UEFI and without). In legacy mode there are some more, but they do not matter.
My problem is that I get black screen when I am trying to use Ubuntu without installing. I have two graphics cards: one from Nvidia and another from Intel (integrated to CPU). I think that the problem can be in this, however other systems (my current installed Ubuntu and Windows on other broken HDD, that is why I want to reinstall it) can be booted OK, without any problems.
Is there any way to choose graphic card that I want to use? Or should I write Ubuntu to USB stick in other way, without using Unetbootin?