The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.

Find out how to submit a request for a refund for a purchase of digital Xbox content.

Compare Microsoft Copilot options to find the best AI-powered tools for your productivity and collaboration needs.

Note This article only applies to when you're signed in with your Microsoft account. For example, a personal outlook.com email address. For information about managing your Microsoft 365 Copilot activity history when you're signed in with your work or school account, see Delete your Microsoft 365 Copilot activity history.

Last updated: May 2026 Introduction to AI credits and limits Microsoft 365 Personal, Microsoft 365 Family and Microsoft 365 Premium plans include the latest AI features to power your productivity and creativity. Some of these features have limits to the number of times they can be used within a specific time period while others require the use of AI credits. Limit and AI credit allotments ...

This non-security update for Windows 11, version 25H2 and 24H2 (KB5067036), improves functionality, performance, and reliability. To learn more about differences between security updates, optional non-security preview updates, Out-of-band (OOB) updates, and continuous innovation, see Windows monthly updates explained. For information on Windows update terminology, see the different types of ...

Learn how to use the PC Health Check app to help you improve your device performance.

Answers to questions on finding, getting, and applying product keys.

如何兑换礼品卡、Xbox 下载代码或令牌 Microsoft和 Xbox 礼品卡、下载代码和令牌的工作方式相同：一旦兑换到Microsoft帐户，即可在 Windows 或 Xbox 上的 Microsoft Store 在线商店 花费余额，并且可以获取最新应用、游戏、电影和电视节目的下载。 在某些国家或地区，你还可以购买 Surface、Xbox 和配件。

Upgrading to Game Pass Ultimate When you upgrade to Xbox Game Pass Ultimate, we'll convert any prepaid time you have on Xbox Game Pass or EA Play subscriptions and apply it toward Xbox Game Pass Ultimate at the current conversion ratio, up to a maximum of 36 months.