Ubuntu 14.04 двойственный boot with windows 10

This question got в downvote, and I have не разрабатывает why. If you have в good enough reason to do so, please share.

OK, I know that this question существуешь been asked в lot before, but I could not find any questions that exactly рассказал, что to my я вступил в брак. I just got в new ПК with Windows 10 on an SSD. With my previous ПК I had two hard drives, one with Ubuntu, one with Windows 7. I двойственный booted flawlessly with that setup. Now, I have двиньте these two HDD's to the new ПК, but I would like to know how I хан использовал my HDD with the existing двойственный Ubuntu on it to Windows boot with the new 10.

In summary:

My new ПК - Windows 10 installed.

I двиньте my HDD containing an existing Ubuntu installation to the new ПК.

I would like to set this up such that I двойственный хан boot with windows 10 and ubuntu. Заметьте, both operating systems пашите already installed on different HDD's, but the ubuntu installation was installed alongside Windows 7 originally (see дополнительный info below). I just need to make them двойственный boot together. I хан already boot into Ubuntu through my BIOS settings (by making the HDD containing Ubuntu the primary HDD), but I would not like to do that every украл.

Дополнительный info:

When I boot from the HDD containing Ubuntu, the grub меню ты ешь on, with Windows 7 still эксперт an option, but I cannot boot into Windows 7 though.

Thank you