Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

After Installation of Ubuntu to my new HDD, I putted my existing Win 7 HDD to my motherboard.

Now when I tried to boot windows by default Ubuntu is opening.

Plz do let me know how to fix the boot loader of Ubuntu?

share|improve this question
what exactly u do firstly install Ubuntu after that win7 or You have 2 different hdd . explain – twister_void Apr 1 '12 at 11:43

You need to define in your BIOS settings that the HDD that you want to boot is your Windows HDD, if you cannot find that option in your BIOS (99.9% will have it) you need to swap the cables between your Ubuntu HDD and your Windows HDD.

There should not be an issue here since you apparently installed Ubuntu and Windows in to 2 different disks: both have different MBR and boot loaders installed.

Either select which disk you want to boot from in your BIOS or swap the cables from one disk to the other.

share|improve this answer
In case of 2 different hard disk +1 – twister_void Apr 1 '12 at 11:48

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.