I opened BlueScreenView and it shows ntoskrnl.exe as a problem sir.It happens atleast 3-4 times a day.It happens when I play games,surf web or moving some stuff from my external hdd.
provide the bugcheck code or even better the actual memory .dmp file.
You can place it on a cloud share like google docs, media fire or one drive and people can take a quick look with the windows debugger and tell you why it bugchecked.