How do I make a DataSafe Recovery on a Flash Drive

bought a new Dell Inspiron i5 Laptop  did a set-up, then when it came up recommend a DataSafe back up  something to use in case of a Hard Drive Failure or something like that, then I would be able to get my computer up and running again.  I put in an 8 GB Flash Drive and it said I needed at least a 12GB, so I clicked 'cancel" went to the store and they were out of 12GB so I purchased a 16GB  then found out that I needed a 16GB. anyways when I went to find where It said DataSafe to get it onto my flash drive, I could not find anywhere that I could click onto to get it..  I did find one thing that said, Back-up clciked onto it and  it was the wrong one. only took  a few seconds to download then it said that it had Backed up my libraries, and user files. and would update every Sunday at 9 P.M.  that was NOT what i wanted.     so How do I get the DataSafe Local Back up to put onto a Flash Drive ?

               Thanks