To get a refund for apps and games purchased from the Microsoft Store, follow these steps:

1. Go to the Microsoft Store website and sign in with your account.
2. Click on "Help" at the top of the page and select "Order history".
3. Find the order containing the app or game you want to return and click on it.
4. Click on "Return or exchange an item" and follow the prompts to initiate the refund process.

Alternatively, you can also contact Microsoft Support directly through their website or by calling their customer service number.

Note: Refund policies may vary depending on your location and the specific app or game being returned.