Contact - Microsoft Support
Support for Office 2021 will end on October 13, 2026. Learn more about your options for Office.
与我们联系 | XBOX Support
需要有关 XBOX 主机、XBOX 游戏或 XBOX 网络的帮助?了解如何与我们联系。
查找 BitLocker 恢复密钥 | Microsoft Support
摘要 当 BitLocker 无法在 Windows 中自动解锁加密驱动器时,需要 BitLocker 恢复密钥。 这是一个 48 位数字,可让你重新获得对驱动器的访问权限。
Bilgisayar için Oyun Hizmetleri Onarım Aracı | XBOX Support
Bilgisayarda Oyun Hizmetleri ile ilgili yükleme ve güncelleştirme sorunlarını gidermek için Oyun Hizmetleri Onarım Aracı'nı nasıl kullanacağınızı öğrenin.
Sign in to SharePoint | Microsoft Support
Training: Get started with SharePoint in Microsoft 365. At office.com, sign in to SharePoint, then select the SharePoint tile.
Find your BitLocker recovery key | Microsoft Support
Summary A BitLocker recovery key is needed when BitLocker can’t automatically unlock an encrypted drive in Windows. This is a 48‑digit number that lets you regain access to your drive.
Manage XBOX online safety and privacy settings | XBOX Support
Learn how to manage the online safety and privacy settings on the XBOX console for you and every member of your family group.
Account & profile | XBOX Support
Find everything you need to manage your Microsoft account, XBOX profile, and more.
Download Microsoft Authenticator | Microsoft Support
The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.
查找你的 Windows 产品密钥 | Microsoft Support
了解如何查找用于激活的 Windows 产品密钥,以及何时改用数字许可证。
Applies To: Microsoft account dashboard