S. M. A. R. T. test failure.

S. M. A. R. T. test failure means Hard Disk Drive is dead. So, you need to replace the HDD. I would recommend to replace it with Solid State Drive, because it's faster than HDD.

A S.M.A.R.T. test failure indicates that the hard drive is in a critical state. The most common error is that users fail to act immediately to back up all important data including: pictures, documents and any other files that need to be preserved. Backing up the hard drive should be done immediately. It is possible that some data has already been corrupted or completely lost. Once the hard drive has been backed up, it can be replaced.

The Dell Inspiron E1705 is a similar computer and the hard drive replacement

walk through can be used to replace the hard drive in the Dell Inspiron 9300. Removal/Replacement of Dell Inspiron E1705 Hard Drive