Ask an Expert: The Best Ways to Back Up Your Data. Have you backed up your hard drive lately? Here are some tips how to do it right. First, make a couple. Flash drives can fail also; so, you might want to back up to the cloud as well. I tend to backup essential files to an SD, and a USB drive. I also do a complete image of my principal drive in case of catastrophic failure. Pick your poison. But, back up. Do it today.