I need to replace my existing hard drive with a larger drive.
How do I transfer the info. from the old drive to the new drive ?
Do you mean that you want to copy everything, including the OS, from your old drive to the new one, and not need to reinstall Windows? That was my interpretation of your question, but, so far, the other 3 replies preceding mine did not seem to interpret your question that way.
If this is what you want to do, it should be possible using software provided by the hard drive manufacturer. For example, Western Digital, which I'm most familiar with, provides their Data Lifeguard Tools software with retail drives. If you bought an OEM drive, meaning you just get the drive, you can visit the manufacturer's web site to download the software.