What do you get when you go into the [https://technet.microsoft.com/en-us/library/aa996634(v=exchg.65).aspx|event viewer] after a crash ? May be a good idea to run a [https://www.memtest86.com/|mem test] .Bad memory can cause crashes . You can also check your system files with a [https://support.microsoft.com/en-ca/help/929833/use-the-system-file-checker-tool-to-repair-missing-or-corrupted-system|sfc scan] Check your exhaust fan to make sure theres a good flow of air . An overheated computer is prone to crash . Just some ideas that may help