With SSD Hard Drives getting cheaper and cheaper, you can significantly improve the performance of your computer by replacing a regular Hard Drive with an SSD Drive. There are a number of free software that will allow you to clone a Hard Drive to another including Macrium Reflect Free, Shadow Copy, and Ease Us Todo Backup Free. Just download and install any of the tools suggested, and clone the hard drive from one to another. If you're on a desktop machine, you can simply connect the second drive to another SATA connector and clone the active ("running HDD") one to a new one. If you're on a laptop, you'll either have to pop out the HDD and connect to a Desktop PC to clone the drive or buy a SATA to USB adapter.