By default Windows 10 sets your game capture directory to your username drive on the OS drive. So whenever you are using Game Bar to record your gaming, it saves it to your OS drive. But if you have another drive, preferably an SSD, you can move the default game capturing to that drive.

But there isn't a setting to change. Instead you have to move your default user video directory to the new location. Here's the simple way to choose the new location.

For complete instructions and a walkthrough
watch the video below