This tutorial will show you how to copy files from an old hard disk to a new USB drive using Windows 7.
USB Flash Drives - How to make a usb flash drive.
If you need to transfer large amounts of data between computers, then you should consider buying a USB flash drive. These devices are small enough to fit into any pocket or bag, so you can carry them with you wherever you go. They are also very easy to use, as there are no complicated settings to worry about.
USB Hard Drive - How to make a hard drive usb.
You can buy a USB hard drive online at Amazon.com for less than $20. This will allow you to store up to 1TB of data. It's not much more expensive than a regular hard drive, and it has the added benefit of being portable.
USB Pen Drive - How to make pen drive usb.
If you need to transfer files between computers, then you'll probably need a USB stick. These come in various sizes, with capacities ranging from 4GB to 32GB. They're also very cheap, so you can afford one for every computer you own.
USB Stick - How to make stick usb.
You can use any old USB stick as a storage device. Just plug it into your computer's USB port and copy the data onto it using Windows Explorer (or whatever file manager you prefer).