Go to Iomega website - identify your drive and download the latest software for the 250mb drive.
Its a big download - but I'm certain it will sort all your problems out 'Ioware' is what it's called I think.
The Evil Within 2 review-in-progress
Adobe shows still-in-development tools, including automatically colourising black-and-white photos
iPhone X news: Release date, price, new features & specs
Comment transformer un iPhone en borne Wi-Fi ?