I am trying to dual boot my computer with Windows 8.1 and Ubuntu Linux I have the iso for Ubuntu downloaded and I used a utility to create a boot disk from a flash drive but my system wouldn't recognize the drive so I was going to try the utility again to make sure an error didn't occur the first time but I've tried several ways to format the drive but I can't get it to format I've used Disk Management and the command line tool diskpart to wipe it completely and create a new partition but it still shows it as a RAW format drive and will not let me format it. So I would appreciate any ideas on how to get it formatted.