A first step: remove all overclocking, it doesn't matter what the stability is with or without overclocking, overclocking on an unstable system isn't smart and causes only more problems.
Be sure that you genuine activate Windows and install all updates.
Have you updated the firmware of your SSD?
What memtest did you run and for how many passes?
Have you run any other test? If you have what was the result?
Please fill in your system specs
Please follow this tutorial
and download the tool. The tool will give you detailed information about your system specs, please fill in your system specs more completely including PSU, cooling and other used stuff. The PSU, cooling and other used stuff are NOT mentioned in the tool.
How to fill in your system specs: