Learn how to protect your PC, identity, and data from tech support scams.

Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

This page provides support links for home users and support phone numbers for business users.

如何變更玩家代號？ 我們已將新的 Xbox 玩家代號更新為支援最多 12 個字元的 Unicode 玩家自選名稱，而此名稱還會在您分享玩家代號時加上自動產生的尾碼。 我們為玩家提供 13 個不同的字母系統，支援全球超過 200 種語言。

注意: 请注意，Surface 商业设备的支持案例只能 联机 启动。 对于批量许可支持，请打开Microsoft 365 管理中心，选择“ 帮助 & 支持 ”，并搜索“管理批量许可”或提交 联机支持请求。 请不要忘记包括你的许可证 ID 或协议编号、你的联系人电话号码 & 电子邮件地址，以便我们可以联系你。 如果已有 ...

Microsoft is modernizing the activation experience for perpetual licenses. Beginning December 3, 2025, the traditional telephone-based product activation automation process has been moved from telephone to online. Customers will instead use the Product Activation Portal: Product Activation Portal The new digital workflow provides a more secure, reliable, and user‑friendly activation ...

Summary This article provides explanations for why verification codes from Microsoft don't always arrive. It includes a list of the most common causes, and solutions for each one. Microsoft is committed to advancing security standards and as such, we will start phasing out SMS as a method of authentication and account recovery for personal Microsoft accounts. Reasons why verification codes don ...

iOS Android To install Authenticator on your iOS device Scan the QR code or download and install Authenticator from the Apple app store.

Phone Link lets you connect your Android or iPhone to your Windows PC, allowing you to access many phone features directly on your computer. You can easily read and reply to text messages, view recent photos from your mobile device, use your favorite mobile apps, make and receive calls, and manage notifications from your mobile device on your PC.

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