So I just got a brand new Dell XPS 13 which comes preinstalled with Windows 8 Pro. I decided to install Ubuntu 13.04 and dual-boot. I made a bootable USB, booted up the Ubuntu installer and found that it didn't recognise my Windows 8 OS to install "alongside", so I realised I would need to make my partitions manually. I went back into windows and used the disk manager to shrink my C drive by 100GB. There were about 5 other partitions like EFI and stuff that I ignored. Then, back to the ubuntu installer, made a primary partition of ext4 and a 20Gb Swap partition. I finished the installer, and Ubuntu works great!

Now my problem. I have no way of booting Windows. Every time I start the machine, it goes straight into Ubuntu. I have tried holding down Shift, but don''t see any GRUB screen. Ubuntu works great, but how do I boot to Windows???