How can I use my Microsoft Points to purchase a game?

If you mean gamerscore you cant only ms points you buy with a gift card can be used

Hi ATOL D NHAAL,

sorry but Microsoft Points. If you Talking about the point of the reward program, this you can

change in credit for your MS account. Then you can buy some games.

Hope this helps and please keep us informed

Thanks for the help, I appreciate it.

Hello ATOL,

We thank you for bringing this inquiry to our forums community, and understand that this concerns how you can use your Microsoft Rewards points to purchase games for your account.

In order to use the points towards games, you would only need to redeem your points with one of the
available offers through the Microsoft Rewards section. For example, you can choose to redeem a gift card for the Microsoft store that would then allow you to complete purchases with your account.

We hope that this information helps, and we wish you the best!

Hello ATOL D NHAAL,

Thank you for letting us know that the issue has been fixed. We'll be locking the thread as the issue has been resolved. If you ever require any help with any other issues please feel free to come back to the Xbox Forums for further assistance.
For those reading this thread and if the troubleshooting steps listed above didn't help resolve the issue, please feel free to create a new thread asking for assistance.

Thank you again and have a great day!