I am rather confused by the results from the surface test done by eraseus. I ran it on my hdd and fir most of the disk the sectors were all good then at around the 50% mark they all turned bad. Now the drive is 8 tb abd I am using around 3tb. I have experienced no issues from the hdd and only did the test because a cloning failed due to a bad sector. I did the windows error check on the disk and it said no errors. I haven't run chkdsk yet. Is the surface test just saying the empty sectors are bad?