Hello, Yep, I have a couple of issues here. I'll start with the most important. I first originally dual booted OSX and Windows through Bootcamp, as you do. I then needed to resize these two partitions and create a third for Linux, I used a linux live usb "Parted magic" a linux partitioning tool. Later on I then installed ubuntu. The problem now is, I think the partition tables/entries are a mess. Windows no longer boots and I am unwilling to start a fresh bootcamp install, I don't see why I should, I want to keep my settings and data. When I boot Windows 7 through rEFIT I get: The win boot manager Windows failed to start because a recent hard or software change etc, here: It's also important to add that this screen is unresponsive, pressing either "enter" or "esc" does nothing. You have to press and hold the power button to force a shutdown. Grub: When attempting to boot through grub EFI I get: So, where to from here. I have heard of, and indeed have GPT fdisk (gdisk) installed but I don't know with a 100% confidence how to remedy this using it. I'm banking, some of you do. Thanks, 4F.