A:Answer I purchased 3 of these HDD for 3 new machines, 2 of the 3 worked just fine. The 3rd is not responding, Best Buy Support is very frustrating! I purchased online, but have to take back to a store for exchange?? The nearest store is over 25 miles. I can't any live help, wait in quew for 40 minutes then it went to dial tone... Good Luck