Microsoft account help and support. Get help with signing in, locked or compromised accounts, linked accounts, closing, reopening, and updating your security info and account profile.

If you can't sign in. To protect your account, the Outlook.com team won't be able to help if you're having problems signing in. Use the Microsoft account sign-in helper to get back into your account. Get help signing in. If you can sign in. To see self-help answers, or to get support via email, Select Help from the top menu then Help.

When you need to protect the privacy of an email message, encrypt it. Encrypting an email message in Outlook means it's converted from readable plain text into scrambled cipher text.

使用 vlookup、hlookup 和其他函数（如 index 和 match）根据您输入的值搜索和查找数据。 本文将让您快速回顾 vlookup，然后链接到更多内容。

Tip: If your can't get the code by email or phone, you might be able to enter an email address that's different from the one you're trying to recover. Go to the Recover your account page and follow the prompts. Enter your current password, enter your new password, and then select Save.

Microsoft 365 is a subscription service that makes sure you always have the most up-to-date modern productivity tools from Microsoft. There are Microsoft 365 plans for home and personal use, as well as for small and midsized businesses, large enterprises, schools, and non-profits.

On the Start menu, scroll down the all apps list to Microsoft Solitaire Collection, right-click (or press and hold) the tile and select Pin to Start .It'll be available on the Start menu.

Select Start > Settings > Personalization.The preview window gives you a sneak peek of your changes as you make them. In Personalize your background, you can select a picture, a solid color, or a slideshow of pictures you create.Or you can choose Windows spotlight to see a new image from around the world every day.

注意: 使用安装介质重新安装Windows 11，同时选择“不保留任何内容” (干净安装) ，如果重新安装 Windows 的分区为 20GB 或更大，则将自动启用保留存储。 保留存储空间将留出磁盘空间以供更新、应用、临时文件和系统缓存使用，因此可确保关键的操作系统功能始终可以访问磁盘空间，从而改进了电脑 ...

将 Xbox 无线适配器插入电脑。 通过按 Xbox 按钮 打开控制器。 打开控制器时，Xbox 按钮 将开始闪烁。 长按 Xbox 无线适配器上的“配对”按钮 。 会有一个小灯闪烁几秒钟。 长按控制器顶部的的“配对”按钮 （凸起按钮）。 控制器上的 Xbox 按钮 将加速闪烁 - 这意味着控制器正在搜索 Xbox 无线适配器。