I have an old Toshiba that has no optical drive. To install Win7, I needed a bootable USB stick. Here are the basic steps 0. Download Win7 http://www.microsoft.com/wi... 1. Get a USB stick – need a 4 gig one here – the ISO is about 2.5 GIG 2. Format the USB as NTFS (use quick – no need for sector check) – it MUST be NTFS 3. Run DISKPART from an elevated command prompt 4. Make the new USB volume “ACTIVE” 5. Extract the Win7 ISO somewhere (not the USB) – you can use ImgBurn, IsoBuster,...