Yesterday, I downloaded Windows 8.1 Enterprise Preview, so I could install it on my Surface Pro. I went to TechNet, downloaded the ISO, everything seemed fine, but then I tried to mount the ISO. This is the error that I received: “Sorry, there was a problem mounting the file.” I thought that it might have been my download that was corrupt, so I downloaded it once again, tried to mount it, but still with the same error. My conclusion was…