Is playing a game located on my other partition affecting game performance?

I installed World of Warcraft on my other partition not my operating system partition. Does this affect the performance of the game? I do notice frame rate decreases sometimes but not to bad. Could this be the reason?Is playing a game located on my other partition affecting game performance?If anything, it will probably improve performance. You are loading game code from one drive, while the windows uses the C: drive for paging and OS code. You are splitting the disk IO over two devices. The improvement may not be noticeable, but sharing any "load" across multiple devices usually improves performance.Is playing a game located on my other partition affecting game performance?That has nothing to do with it, unless you have VERY slow drives. Frame rate will decrease when there's a lot of video activity (flickering fires, sunlight reflecting on water - that kind of thing). In the middle of a really big battle, your frame rate will drop. If it drops too much it means that you need a better graphics card. (Even an nVidia 9800 will keep 40fps or better on WoW.)