Display driver nvlddmkm stopped responding.  

Lemur said:

Where was you setting for DX9? DX9 is a subset of DX11, and I would have thought your only option was DX11. If you run "dxdiag", it should report your version of DX.

It was only ever crashing in WoW, which for some reason lets you chose which graphics API (DX9 or DX11) to use, by default it was set to DX9.
After switching it has not crashed once.

Maguscreed said:

installing the latest direct x redistributable could possibly solve that.
Download: DirectX End-User Runtime - Microsoft Download Center - Download Details
believe it or not there have actually been changes to dx 9 since win 7 was released and for some reason windows update still to this day isn't updating direct x.

I've removed the 210 and reinstalled the drivers again, though it still hasn't crashed since switching to DX11.

I'll install the DX9 update you linked as well.

Maguscreed said:

Very often gamers are prompted to update direct x and don't during installation, just assuming all is well.

Actually a lot of the games released via steam and I think origin now as well don't give you the option to skip DX updates when installing games.
Unfortunately the only game I've installed so far is WoW, which doesn't offer any updates during installation.

Anyway, thanks everyone for your help! :)

Maguscreed said:

Yeah those direct x updates only replace/add dll's when the installer finds something missing.

It was installing updates from as early as 2004, if that's true, Win7 must not even install the latest version that was available at its release =/
Seems like a pretty big mistake on Microsoft's part.