Macbook Pro 2011 AMD GPU failures
If, like me, you are one of the sufferers of the 2011 Macbook Pro AMU GPU fiasco (3 separate failures on mine) and are no longer able to boot into your boot camp Windows system, you can access it, with your AMD GPU disabled, through Parallels.
Since it's virtualizing your Windows system, it will be slower than a direct boot into Windows but at least it will still be accessible to you. This is good news for many of us, I'm sure. This tip was from the good folks at realmacmods.com, who can also show you how to disable your AMD GPU, or if you aren't up to that task, they can do it for you.
MacBook Pro 15″, macOS 10.13