My SATA hard drive failed last week in my fairly new Dell Inspiron 1720. I called Dell, they sent a new hard drive, and I installed it on Friday. I just realized that there are some files that I forgot to copy from my old hard drive before I send it back to Dell. My question is: can I re-install my old hard drive in the available slot and find and save my files without jeopardizing the new hard drive or anything on my computer? And will it be a lengthy project or can I do it quickly? I'm not experienced with all of this so any suggestions would be greatly appreciated! Thanks!