Fortunately, changing between the "fast" and "slow" rings is extremely simple to do. And since build 10122 has some pretty showstopping bugs for some folks using AMD GPUs, you might need to get onto the slow ring in a hurry.
Here's what to do.
- Open up the "Settings" app
- On the main screen you'll want to click on "Update & security"
- From there you'll find yourself in the Windows Update menu.
- Click on "Advanced options"
- Scroll right to the bottom where you;ll see a drop-down box
- Click on it and select "fast" or "slow" depending on your preference.
And that's all there is to it. You can switch between the two at any time by following the same steps.