Win 10 pro crashing at random points, no bsod

So I upgraded to windows 10 exactly 1 week ago, and only today have I started to experience crashes. the screen goes black and my PC restarts on its own, I suspect it may be something to do with running flash player on three separate browsers at the same time, but I am unsure, hence me posting on here.

I have:
windows 10 pro
8gb ram
geforce gt 630
gigabyte 78lmt-usb3 MB

If you would like any other info please ask, and I will try my best to provide it.

Oh and I have attached the BSOD file thing you guys ask for just in case

• OBLIVION-06_08_2015_231842_21.zip (317.5 KB, 5 views)

You're experiencing 0x124s which are nearly always down to hardware. As in this case though the dumps rarely point to what piece of hardware is problematic. Please follow the guidelines below to test your hardware and see if we can find the culprit.

STOP 0x124 Troubleshooting

Read carefully before proceeding.

   Warning

If you're overclocking your system, revert back to stock clocks now.

   Note

Test the system once the overclock is removed before continuing with the steps outlined below.

Part One: CPU Stress Test
Part Two: MemTest86+ RAM Diagnostic
Part Three: Hard Drive Diagnostics
Part Four: GPU Stress Test

ONE

 CPU TEST

Run Prime95 to stress test your CPU.

   Warning

Your CPU temperatures will rise quickly while under this stress test. Keep a keen eye on them and abort the test if overheating occurs.

TWO

 RAM TEST

Run MemTest86+ to analyse your RAM. MemTest86+ - Test RAM - Windows 10 blog

   Note

MemTest86+ needs to be run for at least 8 passesfor conclusive results. Set it running before you go to bed and leave it overnight. We're looking for zeroerrors here. Even a single error will indicate RAM failure.

THREE

 HDD TEST

Run SeaTools to check the integrity of your HDD.

   Note

Do not run SeaTools on an SSD as the results will be invalid.

Run chkdsk

FOUR

 GPU TEST

Run Furmark to stress test your GPU. FurMark - GPU Stress Test - Windows 10 blog

   Note

Run Furmark for around 30 minutes.

   Warning

Your GPU temperatures will rise quickly while Furmark is running. Keep a keen eye on them and abort the test if overheating occurs.