Summary: I have had this drive since 2010. I used it for 1 year. Then it sat in stage for 2 years. I formatted and installed in my Sony laptop It lasted 2 years and started having errors. No loss of data but the screen would start to freeze. The grains card was fine. Sfc scanned found many errors and attempted to fix but I could not get a clean scan with no errors after many Tries. I finally installed sad with good results so far.