Microsoft made a big fuss out of the Windows 10 Creators Update's gaming features, and it's nearly ready to start delivering on them... including some that have remained mysterious. The company has revealed that it'll start trotting out a largely unknown Windows 10 Game Mode as part of Insider previews "this week." The improvement won't be fully functional until later releases, but Microsoft has at last shed some light on what it is: it'll fine-tune your PC to speed up gaming performance. This mode should help both legacy Windows games (Win32) and modern titles (UWP), so you won't have to be picky about what you're playing to notice a difference. You should "soon" hear a lot more about how it works, Microsoft says.