蓝屏错误 (也称为 bug 检查、停止代码错误、内核错误或 BSOD 错误) 如果严重问题导致 Windows 意外关闭或重启，以保护自身免受数据丢失的影响。你可能会看到一条消息，指出“Windows 已关闭，以防止损坏你的计算机”或类似消息。 硬件设备、其驱动程序或软件可能已导致此错误。

了解如何重置更改 Microsoft 帐户密码。 获取有关忘记 Microsoft 帐户密码的帮助。 重要: 如果看不到用于在何处发送代码的选项，或者你不再有权访问显示的任何验证选项，请使用此登录帮助程序工具。 如果无法识别任何验证电子邮件或电话选项，请使用此登录帮助程序工具。

查找 Windows 7 或 Windows 8.1 的产品密钥 卸载或重新安装 Windows 7 或 Windows 8.1 时，通常需要产品密钥。 通常，如果购买的是实物 Windows 拷贝，产品密钥应该在标签上或者在 Windows 随附包装盒中的卡上。

Wischen Sie vom rechten Rand des Bildschirms nach innen, tippen Sie auf Einstellungen, und tippen Sie dann auf PC-Einstellungen ändern. (Wenn Sie eine Maus verwenden, zeigen Sie auf die rechte untere Bildschirmecke, bewegen Sie den Mauszeiger nach oben, klicken Sie auf Einstellungen, und klicken Sie anschließend auf PC-Einstellungen ändern.)

Swipe in from the right edge of the screen, tap Settings, and then tap Change PC settings. (If you're using a mouse, point to the lower-right corner of the screen, move the mouse pointer up, click Settings, and then click Change PC settings.)

If you try to add an IMAP account to Outlook, for example a Gmail account, Apple account, Yahoo account, or an account from your local ISP, and you're not prompted to enter your password, use the following steps to work around the problem.

How to redeem a gift card, Xbox download code or token. Both Microsoft and Xbox gift cards and download codes and tokens work the same way: once redeemed to your Microsoft account, you can spend your balance at Microsoft Store online, on Windows or Xbox, and you can get downloads for the latest apps, games, movies, TV shows, and Surface, Xbox, and accessories.

Note: In the following countries, you can cancel your subscription, and depending on the subscription length you may be entitled to a prorated refund.See Countries with prorated refunds for Microsoft subscriptions for more information. Any subscription length - Canada, Israel, Korea, and Turkey Subscriptions longer than 1 month and renewed - Denmark, Finland, Germany (purchases on or after ...

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Argument name. Description. range (required). The group of cells you want to count. Range can contain numbers, arrays, a named range, or references that contain numbers. Blank and text values are ignored. Learn how to select ranges in a worksheet.. criteria (required). A number, expression, cell reference, or text string that determines which cells will be counted.