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I have loaded Ubuntu 15.04 onto my Windows XP desktop PC and selected the option for both OSs to remain on the system but when I boot up my computer it goes straight to Windows. On my laptop I get the choice to use either system. How do I get my PC to give me the same choice?

Bob L
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2 Answers2

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There are two possibilities:

  1. Go to UEFI and make Ubuntu your default system. This way, GRUB should show up on startup, where you will be able to select Windows or Ubuntu. If it doesn't, you have to configure it to show up, but that is another topic.
  2. Access the boot options during startup (there should be something like "Press F11 to access boot menu") and choose whatever you want.

Oh, and

  1. Don't use Windows XP. At all. Ever.

For further information on installing Ubuntu on a Windows PC, have a look at this.

Community
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Yanick Nedderhoff
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Assuming you have an older desktop computer with legacy BIOS ...

First disable hibernation in your Windows XP installation.

Open command prompt as administrator and execute : 

powercfg /h off

Shut down the machine completely - do NOT reboot !

Then reinstall the GRUB boot loader.

Boot from the Ubuntu installation media - open a terminal and execute: 

sudo mount /dev/sd** /mnt  
sudo grub-install --boot-directory=/mnt/boot /dev/sd*

Note : sd* = disk | sd** = system partition

To identify the partition numbers use GParted - it is included in the Ubuntu install media.

You now can select which operating system you want to boot from the GRUB boot menu.

cl-netbox
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