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I have Dual Boot Windows 8.1 and Ubuntu 13.10 . When I shut down/restart the Ubuntu I get the the start screen but GRUB wont load . If I Go to BIOS and then goto save changes and exit , without changing anything , GRUB would load . When I shut down/restart from Windows I am not even able to go BIOS , so I take the battery of the laptop out and then put it back again . Then again GRUB wouldn`t load , Then I go to BIOS and follow the same procedure again . I was able to normally turn on the laptop earlier even after dual boot , but now it is creating problems . Please HELP so that I am able to restart / shut down laptop and turn it on normally . PLEASE HELP .