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.

为了使演示文稿更易于与系统中字体不相同的其他人共享，通常嵌入你使用的字体。 但是，嵌入的字体会增加文件大小。 若要最大程度地减少文件增加，请仅嵌入演示文稿中使用的字符。 转到“文件”>“选项”>“保存”。

某些 TPM 芯片集存在可能影响操作系统安全性的安全漏洞，Windows 10操作系统的风险增加。 收到此消息是因为 Microsoft 已发布Windows 10安全更新，以解决需要下载和安装的漏洞。 此外，设备制造商发布了固件更新以解决该问题，你也需要下载并安装这些更新。

Use email templates to send messages that include information that infrequently changes from message to message. Compose and save a message as a template, and then reuse it when you want it.

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Compress the file. When you compress, or zip, your file, it decreases its size, and it might decrease it enough to fit within the Outlook size limits for attachments.The following articles describe how to compress and extract files for different Windows operating systems.

Free screen recorder with Microsoft 365 work or school account. Record your screen or create a new video in Microsoft Stream (on SharePoint), including webcam, background removal, inking, stickers, music, and text. Instantly share your video for others to view and get analytics.

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.

Argument. Description. start_date . Required. A date that represents the first, or starting date of a given period. Dates may be entered as text strings within quotation marks (for example, "2001/1/30"), as serial numbers (for example, 36921, which represents January 30, 2001, if you're using the 1900 date system), or as the results of other formulas or functions (for example, DATEVALUE("2001 ...

如何在 Microsoft Edge 中管理隐私设置. 要更改跟踪防护级别、清除浏览数据、帮助改进 Microsoft Edge 等，请选择“设置及更多 ” > “设置 ” > “隐私、搜索和服务 ”。 要选择网站是否可以向你请求位置、相机、麦克风等权限，请选择“设置及更多 ” > “设置 ” > “站点权限”。