so i have a wind
ows 8 computer XPS 8500 and i was using my computer as normal and all of the sudden "MY DELL" popped up saying i have two failed parts of my hard drive . One being the Targeted Read Test and the other being the Smart short self test. and all i want to know is if i need to buy a new hard drive and if i do how can i make a back up? (sorry im new to these things. ive never had this happen.)