I have just bought 2 Inspiron 15R 5537 machines and they come with Windows 8. As they are to be used on a business network vanilla win8 is not good enough. I have windows 7 pro licenses so I am in the process of installing this OS. Unfortunately it crashes and hangs before i get past the starting windows screen (during installation). Is there a known problem with win 7 pro on these machines?

Thanks

Mike