I keep getting the blue screen of death! :(

[JimmyTheDinosaur]

I keep getting the blue screen of death when playing games, my PC specs, are:
4.2ghz AMD FX-4170 (Not overclocked)
8gb DDR3 1333mhz RAM
Gigabyte 78LMT-USB3 Motherboard
Radeon HD7770 Ghz Edition

I have no idea why this is happening I originally thought it might be my power supply, so I upgraded it from a 500w to a 750w, and the problem is still occurring. My product key for windows was incorrect, and I was wondering if this has any thing to do with my problem. Sorry for asking a question that might be very obvious, but I am confused, and google is not giving an answer. Thank you.

 

[noidea_77]

I'm sorry, but we can not help without the error codes from the bsod.

 

[JimmyTheDinosaur]

It says its caused by driver ntoskrnl.exe, when I try to delete this file I do not have permission, I have tried many methods

 

[noidea_77]

And that is for some reason, because the ntoskrnl.exe is an essential part of your windows operating system. It will not work without this file. Without the error codes, i can only guess, that it is a memory problem. You may want to download memtest86 and test your ram.

 

[JimmyTheDinosaur]

Okay, thank you, will give it a go and let you know

 

[JimmyTheDinosaur]

It says there are no errors

 

[noidea_77]

Next is updating all drivers, like graphics card. Your bios is up-to-date with version F5a?

 

[JimmyTheDinosaur]

There doesn't seem to be a F5a update for my motherboard, but yes

 

[noidea_77]

There doesn't seem to be a F5a update for my motherboard, but yes

So it's not this one? http://www.gigabyte.com/products/product-page.aspx?pid=3833#ov

 

[JimmyTheDinosaur]

Its the 78LMT-USB3 I own

 

[noidea_77]

Its the 78LMT-USB3 I own

So F4 is the newest bios, but that's getting us nowhere. I'm running out of ideas - sorry.

 

[JimmyTheDinosaur]

No problem, its a bit of a tricky one, I know. Thanks awfully for all the help though

 

[JimmyTheDinosaur]

Just to say, I sorted this, it was a combination of many things. PSU, couple Virus' and Mobo :/