This part usually points to the hard drive and memory
Run MemTest86+ to analyse your RAM. MemTest86+ - Test RAM - Windows 10 Forums
MemTest86+ needs to be run for at least 8 passes
for conclusive results. Set it running before you go to bed and leave it overnight. We're looking for zero
errors here. Even a single error will indicate RAM failure.
HDD & SSD TEST
Run SeaTools to check the integrity of your HDD. SeaTools for DOS and Windows - How to Use - Windows 7 Help Forums
Do not run SeaTools on an SSD as the results will be invalid.
Run chkdsk Disk Check - Windows 7 Help Forums
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 and cooling system.
How to fill in your system specs: