Toshiba Satellite Radius L40DW-C - Disk Errors

Hi all,
Friend of a friend dumped a laptop on me for repair. We are IT professionals, thats what we do in the evenings right?.

Anyway, any tips
Model Name                     Satellite Radius L40DW-C
Part Number                    PSLZDA-006002
OS - Win10 Home
Drive is SSD  - IDE Device TOSHIBA THNSNJ128GVNU

Machine is running really slowly.  

I have done a chkdsk c: /r and drive is OK.

Windows is up to date.

I have managed to robocopy all his data off it, however Veeam errors almost immediately when i try to backup the entire disk or volume.

The event log shows 1000's of these
Event ID: 153
Disk
The IO operation at logical block address 0x3201cee for Disk 0 (PDO name: \Device\00000025) was retried.
Event ID: 154
The IO operation at logical block address 0x6fc4918 for Disk 0 (PDO name: \Device\00000025) failed due to a hardware error.

The IO operation at logical block address 0x5834400 for Disk 0 (PDO name: \Device\00000025) failed due to a hardware error.

Any tips on how to:
Run full hardware diagnostics on this model?
Same question to test the SSD?


Any other ideas?

Cheers for any tips.
String