Hello , My Book portable device does not work with my Xbox, can you assist?

Hi there, what MyBook do you have? The AV is the only safe bet to work…

Anyway, your drive needs to be formatted as FAT32 to begin with.,…

Your external hard drive should be recognized by your xbox if is formatted FAT32.

Connect  your hard drive to the computer, open My Computer or Computer, right click on the My Book or My Passport drive and click on properties, you should see if the drive is formatted FAT32 or NTFS.

If the hard drive is formatted NTFS, you’ll need to format it FAT32 for your xbox to be able to recognize it.

You may need to download a FAT32 formatting utility from the web.

Be aware that formatting the hard drive to FAT32 will have a 4GB single file limitation, this means that if after you format the hard drive to FAT32 you want to save a file bigger that 4GB, you wont be able to do so.