Add pictures or attach files to email messages in Outlook
In Outlook, you have the option to: Attach a file | Upload a locally saved file to your OneDrive | Insert a picture into the body of a message | Attach an email item | Solve problems with attachments. Attach a file to an email message in new Outlook. New Outlook keeps track of the files you have worked on recently and suggests them whenever you decide you want to attach a file to an email message.
Applies To:
Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Outlook on the web, Outlook.com, New Outlook for Windows
Office 2021 and Office LTSC for Windows and Mac FAQ
Microsoft 365 is a subscription that comes with premium apps like Word, Excel, PowerPoint, OneNote, Outlook, Publisher, and Access (Publisher and Access available on PC only). The apps can be installed on multiple devices, including PCs, Macs, iPads, iPhones, Android tablets, and Android phones. Microsoft 365 also comes with services like 1 TB of OneDrive storage, 60 Skype minutes per month ...
Applies To:
Office 2021, Office 2021 for Mac
Seamlessly transfer content between your devices
Which devices support cross-device copy and paste? Cross-device copy and paste is supported on Surface Duo and Android devices that are running One UI version 2.1 or above or select HONOR devices (1.22036.14.0 or later) or OPPO devices (1.23093.0 or later) or select ASUS devices.
屏幕镜像和投影到电脑或无线显示器 - Microsoft 支持
注意: 无线显示应用在运行 Windows 11 版本 22H2 及更高版本的设备上可用。如果运行的是早期版本的 Windows，请在任务栏的搜索框中输入 “连接”，然后在结果列表中选择“连接”，从而启动 “连接” 应用。 若要了解正在运行的 Windows 版本，请参阅 我运行的是哪个版本的 Windows 操作系统？
Getting the most out of your PC backup - Microsoft Support
When you back up your files, apps, and settings in the cloud using your Microsoft account, you get 5 GB of free cloud storage and other benefits that protect your files with the latest security and make everyday tasks easier.
Basic tasks in Excel - Microsoft Support
In the Add-Ins dialog box, select the check boxes the add-ins that you want to use, and then click OK. If Excel displays a message that states it can't run this add-in and prompts you to install it, click Yes to install the add-ins. For more information about how to use add-ins, see Add or remove add-ins.
Applies To:
Excel for Microsoft 365, Excel 2021, Excel 2019, Excel 2016
Download and install custom fonts to use with Office
Learn how to locate, install, and share files with custom fonts compatible with Microsoft Office applications.
Applies To:
Office 2021, Office 2021 for Mac, Office 2019, Office 2019 for Mac, Office 2016
在 Windows 中以安全模式启动电脑 - Microsoft 支持
通过使用一组有限的文件和驱动程序，安全模式可使 Windows 在基本状态下启动。 如果在安全模式下没有出现问题，你就会知道默认设置和基本设备驱动程序不是导致此问题的原因。
Install Visio or access Visio for the web - Microsoft Support
Install Visio (Visio Plan 2 or Visio Professional) Below we describe how to install the desktop app that is included with Visio Plan 2, and non-subscription versions of Visio Professional or Visio Standard 2021, 2019, or 2016.. If you have Visio Plan 1 see the steps under the tab Visio for the web. Step 1: Associate Visio with your account
Applies To:
Visio Plan 2, Visio Professional 2021, Visio Standard 2021, Visio Professional 2019, Visio Standard 2019, Visio Professional 2016, Visio Standard 2016, Office for business, Office 365 Small Business, Microsoft 365 admin
How to perform a clean boot in Windows - Microsoft Support
How to determine what is causing the problem after you do a clean boot. If your problem does not occur while the computer is in a clean boot environment, then you can determine which startup application or service is causing the problem by systematically turning them on or off and restarting the computer.