Problem Details:
My game crashed, I accidentally pressed something in game which made it crash. Tried to re-install twice but didn't work.
Here's the whatever it is called, crash log? (kohteessa = in location): OpenTK.Graphics.GraphicsContextException: [EGL] Failed to create window surface, error BAD_NATIVE_WINDOW.
kohteessa OpenTK.Platform.Egl.EglWindowInfo.CreateWindowSurface(IntPtr config)
kohteessa OpenTK.Platform.Egl.EglContext..ctor(GraphicsMode mode, EglWindowInfo window, IGraphicsContext sharedContext, Int32 major, Int32 minor, GraphicsContextFlags flags)
kohteessa OpenTK.Platform.Egl.EglAnglePlatformFactory.CreateGLContext(GraphicsMode mode, IWindowInfo window, IGraphicsContext shareContext, Boolean directRendering, Int32 major, Int32 minor, GraphicsContextFlags flags)
kohteessa OpenTK.Graphics.GraphicsContext..ctor(GraphicsMode mode, IWindowInfo window, IGraphicsContext shareContext, Int32 major, Int32 minor, GraphicsContextFlags flags)
kohteessa #=zZjYKHpuRzWjvEgHNFxLVfZJfC2u5.#=zqtqcJFA=(Int32 #=zblFwaHQ=, Int32 #=zncvlaVU=, GraphicsContextFlags #=zQzjV$Ck=)
kohteessa #=zjtbDwLqK14NGAiLA3Y3SGUc=.OnHandleCreated(EventArgs #=zOR6kMCg=)
kohteessa #=zze2uL$ZDyfLAxFO$Y0dErTYWdkWS.OnHandleCreated(EventArgs #=zOR6kMCg=)
kohteessa System.Windows.Forms.Control.WmCreate(Message& m)
kohteessa System.Windows.Forms.Control.WndProc(Message& m)
kohteessa System.Windows.Forms.ScrollableControl.WndProc(Message& m)
kohteessa System.Windows.Forms.ContainerControl.WndProc(Message& m)
kohteessa System.Windows.Forms.Form.WmCreate(Message& m)
kohteessa System.Windows.Forms.Form.WndProc(Message& m)
kohteessa #=zyWC7LzuxR7OP7HtMRbUMiSw=.WndProc(Message& #=zkM3WRN4=)
kohteessa System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
kohteessa System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
kohteessa System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)




osu! version: 20171106.5 (latest)

Please make sure your graphics drivers are up to date by downloading the drivers from one of these websites:

1. NVIDIA (download the second driver on the list that shows up when you search)
2. AMD
3. Intel

What GPU do you have?

If you're using Intel Graphics then most definitely update the driver to the latest version, that'll solve the issue.

> I accidentally pressed something in game which made it crash.

Most likely Compatibility Mode. Firstly, make sure your drivers are updated like said above, but if that isn't enough to fix your issue, navigate to your osu! install (default path is appdata/local/osu!) and find osu!.pcname.cfg. Open it with notepad and search for CompatibilityContext. Make sure it's 0, save and try launching osu!