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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?
Freeze panes to lock rows and columns - Microsoft Support
To keep an area of a worksheet visible while you scroll to another area of the worksheet, go to the View tab, where you can Freeze Panes to lock specific rows and columns in place, or you can Split panes to create separate windows of the same worksheet.
Applies To: Excel for Microsoft 365, Excel for the web, Excel 2021, Excel 2019, Excel 2016
Fix USB-C problems in Windows - Microsoft Support
USB-C overview. With a USB-C connection, you can charge your Windows 11 PC, and you can also connect to other USB Type-C devices such as mobile phones, docking stations, display adapters, and other devices that have a USB-C port.
Recover lost or deleted files - Microsoft Support
If you can't find a file on your computer or you accidently modified or deleted a file, you can restore it from a backup (if you're using Windows backup) or you can try to restore it from a previous version.Previous versions are copies of files and folders that Windows automatically saves as part of a restore point.
How to open MSConfig in Windows 10 - Microsoft Support
Learn how to open MSConfig in Windows 10 using the taskbar search bar and access system configuration.
Schedule a meeting in Microsoft Teams - Microsoft Support
The scheduling form is where you'll give your meeting a title, invite people, and add meeting details. Use the Scheduling Assistant to find a time that works for everyone.. In Scheduling Assistant, you can see attendees' time zones, schedules, and availability during different timeslots. The Scheduling Assistant grid will show each attendee's schedule.
Applies To: Microsoft Teams
Insert the current date and time in a cell - Microsoft Support
You can insert the current date and time in an Excel cell as static values or as dynamic values. A static value is one that doesn’t change when the worksheet is recalculated or opened. A dynamic value is one that is updated each time formulas are recalculated.
Applies To: Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016
Add and request read receipts and delivery notifications in Outlook
To get support in Outlook.com, click here or select Help on the menu bar and enter your query. If the self-help doesn't solve your problem, scroll down to Still need help? and select Yes.. To contact us in Outlook.com, you'll need to sign in.
Applies To: Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Outlook on the web, Outlook.com, New Outlook for Windows, Outlook on the web for Exchange Server 2016, Outlook on the web for Exchange Server 2019
Fix problems that block programs from being installed or removed ...
The Program Install and Uninstall troubleshooter helps you automatically repair issues when you're blocked from installing or removing programs.
Create and format a hard disk partition - Microsoft Support
To create a partition or volume (the two terms are often used interchangeably) on a hard disk, you must be logged in as an administrator, and there must be either unallocated disk space or free space within an extended partition on the hard disk.