Depending on how you got your copy of Windows 10, you'll need either a digital license or a 25-character product key to activate it. Without one of these, you won't be able to activate your device.

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

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.

Find out how to change your Xbox gamertag through a browser, on your Xbox console, or your Windows device.

Use voice typing to talk instead of type on your PC Applies To Windows 11 Windows 10

Xbox Support ... Xbox Support

Your PC will still work, but we recommend moving to Windows 11. Scroll through the list, select the app you want to remove, and then select Uninstall. Turn Off the toggle for that app to prevent it from running in the background.

If you are trying to set up an Exchange account in Outlook, ask the organization that gave you the email address for the name of your Exchange server. It's standard for them to provide you with this information so you can add your email address to a computer or phone. If you are trying to set up an Office 365 for business account with Outlook, see POP and IMAP settings for Outlook Office 365 ...

Microsoft Support

Skype 帮助和学习 重要: 2025 年 12 月 20 日更新：我们将必需导出 Skype 数据的期限延长至 2026 年 6 月。 请通过 此处 的 Skype 导出门户提交下载数据的请求。