Establishing internet boundaries is an important way to protect yourself and your family from inappropriate web content. Microsoft Family Safety web and search filters work across any Windows, Xbox and mobile device that has the Microsoft Edge browser and Family Safety apps installed.

如果你认为有人可能未经授权访问你的帐户，我们可以通过从所有受信任的设备注销来保护你。 在 24 小时内，你将注销浏览器、应用以及你的帐户用于登录的任何其他位置（Xbox 主机除外）。

EA Play（以前称为 Origin Access Basic）一项订阅服务，订阅会员可游玩 EA 在主机和电脑上最受欢迎的游戏系列和顶级大作，获取专属游戏内挑战和奖励，订阅会员专属内容，以及获得即将发售的热门系列和顶级大作的新作的独家试玩版。

Check your computer's date settings. Excel uses your computer's date system. If a cell's date isn't entered using the same date system, Excel won't recognize it as a true date.

准备好安装了吗？ 在开始之前，请确保电脑或 Mac 满足 系统要求。. 如果你已兑换产品密钥，只需重新安装应用，或者知道你已通过工作或学校分配了许可证，则可以跳到登录部分 ，下载并安装 Microsoft 365 或 Office。 但是，如果是 首次 安装 Microsoft 365 或 Office，可能需要先执行一些步骤。

Choose the mobile app. Open a browser on your computer and go to portal.office.com.Sign in to your Office 365 for business account.

Notes: If your Android device is running Android 11.0 or higher, you may be eligible for the multiple apps experience. Compatible devices are marked with an asterisk (*).

Notes: If you don't see an option to Cancel, but instead see a link that says Turn on recurring billing, this means your subscription is already set to expire on the date shown and you won't be automatically charged after this date. There's nothing further to do at this time, and you can continue to use the product until your Microsoft 365 subscription expires.

If you accidentally delete a file or folder in OneDrive, you may be able to recover it later from the OneDrive recycle bin.. For info about restoring a SharePoint file or folder, see how to restore items from the SharePoint recycle bin.For info about restoring SharePoint files stored in OneDrive, see Restore a previous version of a file in OneDrive.

如果知道用户名和密码但已停止工作，请阅读 我的用户名和密码已停止工作。. 如果你忘记了 Microsoft 帐户用户名或电子邮件地址， 并且 之前已在 Microsoft 帐户上设置了其他 安全信息 ，请按照以下步骤操作。