When I ran CrystalDiskInfo it says caution and shows that I have 1928 reallocated sectors. Its just like 5 months old and just like 650 power on hours. What does this reallocated sectors means? Should I worry? When I fill the HDD to like a mere 60 to 65 percent it freezes sooo much. Its a 1 TB Toshiba MQ01ABD100