If you forgot your PIN and need to reset it, you can do so from the Windows sign-in screen. Look below the PIN text box: If you see I forgot my PIN , select it and follow the instructions to reset your PIN.If there are multiple accounts on the device, choose the one you need to reset.

若要在 Outlook.com 中获取支持，请单击此处或选择菜单栏上的帮助，然后输入查询。 如果自助服务无法解决问题，请向下滚动到“仍需要帮助？”，然后选择“是”。 若要在 Outlook.com 中联系我们，需要登录。

如果你收到有关 Microsoft 帐户上异常活动的电子邮件，或者你担心其他人可能使用了你的帐户，请转到“最近活动”页。 你将看到你的 Microsoft 帐户在过去 30 天内的登录时间，以及任何特定于设备或应用的信息。

If you see a Let's get started screen with options to try, buy, or activate Office, this means that Office is installed on your new PC as a 1-month trial of Microsoft 365 Family. You won't receive a product key from your PC manufacturer unless you paid for an Office product key card. Instead, you can start a trial of Microsoft 365 Family, or buy Office.

答复 仅将新邮件发送给原始发件人。不包括附件。 “全部答复” 会将新邮件发送到“收件人”和“抄送”行上的原始发件人和所有其他收件人。不包括附件。 转发 允许你键入一组全新的收件人。转发邮件时，将自动包含原始邮件中包含的任何附件。 为什么回复邮件时未包含附件？

有些时候，你需要检查单元格是否为空白，通常是因为你可能不希望公式没有输入值就显示结果。 此情况下，将 IF 与 ISBLANK 函数搭配使用： =IF(ISBLANK(D2),"Blank","Not Blank")

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A delivery receipt confirms delivery of your email message to the recipient's mailbox, but not that the recipient has seen it or read it. A read receipt confirms that your message was opened.

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Digital goods like apps, games, add-on content, subscriptions, movies, TV shows, and books aren't returnable unless the offer for applicable law states that you're eligible for a refund.