Please run HDTune first, in the order posted!
Run HDTune to
- check the health,
- scan for errors, no quick scan but full scan
- run a benchmark.
It may take some time, but please take the time you need to perform it properly.
When above is done please make screenshots of the following
- the health,
- the error scan,
- the benchmark incl. following
- transfer rate,
- access time,
- burst rate,
- cpu usage.
Run SeaTools DOS to check the integrity of your HDD. SeaTools for DOS and Windows - How to Use - Windows 7 Help Forums
Run the long test.
Do not run SeaTools on an SSD as the results will be invalid.
Make a photo of the result and post it.
Disk Check - Windows 7 Help Forums
Use option TWO with parameter /r
Upload the chkdsk log Check Disk (chkdsk) - Read Event Viewer Log - Windows 7 Help Forums