Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free.

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

I had Windows 7 installed on my machine, and then late I've installed Windows 8 (dual boot), and they work fine together.

Windows 8 was normally loaded, but to load windows 7 I had to reboot the machine first from Win8 boot menu.

Now, after installing Ubuntu 12.04, I can access Windows 7 normally, but when I want to access Windows 8 I can't, system reboot and I am again on GRUB loader. What can I do to fix this?

share|improve this question
Please indicate your Boot-Info URL. – LovinBuntu Sep 11 '12 at 7:56
try to run Linux an use command sudo update-grub. And tell us if it worked. – Misery Sep 11 '12 at 10:02

You have to repair Windows booting first.

This will write Windows MBR !

Can be done using StartUp Repair from Windows 8 DVD/USB or use "Dual-boot Repair" utility.

Then you can either triple-boot over Windows boot manager or over GRUB - it is your choice:

share|improve this answer

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.