I feel that when one buys a computer that they have invested a small amount of money into a machine that is helpful in many ways. I, also,believe one must take special care of anything one buys and that is why one needs to insure that it is safe. Wehad our salesman install a n instrument into our computer so as to prevent viruses etc. so therefore we will not need your device. Thank you kindly. Respectfully,Jimmie Hyde,fjpp27@sonet.net