Interpreting the Spin Retry Count S.M.A.R.T. attribute value for hard drives

Solution 1:

Confusedly, high values for Current indicate good health, while the Threshold value indicates the lower ceiling below which health is to be considered as poor.

So usually the value of 100 means that everything is OK. Higher values often mean that the attribute has never been updated (implies 100).

As your Current value is 166, this only means that you never had a Spin Retry Count error, which agrees with your Raw value of 0. You should consider replacing the disk if Current ever drops below 30.

Last remark : I prefer Speccy to CrystalDiskInfo, as its S.M.A.R.T. display is clearer.