I have a Fujitsu Lifebook B series running Windows XP and the OS has crashed and will not load anymore. Says there is a file corrupted somewhere. This computer has no floppy drive or optical drive, only the hard drive. I'd like to find out how I can reload a new OS on here. I have a USG optical drive and a USB floppy drive, but there doesn't seem to be a way to boot from either device. I tried all the settings in the bios but keep getting no where. Any ideas?