Hi there, I have just purchased Windows 8.1 from the online store at Microsoft and i have got the download in my account so i can access it. However when i go to download it it doesn't work. My question is how do i download windows 8.1 to my 20GB USB stick so i can go into bootcamp and download it. I have also purchased the back up disks for it also. Is using the disks the only way to install windows on my mac or is there a way around it by just downloading it from the website. Ill be upgrading my ram to 4GB soon also because i want to run a CAD program on the windows side. Cheers, Thanks for your help, Olly.