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Contact Microsoft Office Support - Microsoft Support
Sign in to Microsoft 365 admin center with your Microsoft 365 admin account, and select Support > Help and support, enter your question and select Contact support. If you're an admin on the account you can also call (800) 865-9408 (toll-free, US only). If you’re outside the United States, see the global support phone numbers. Business Assist ...
配置 Windows Hello - Microsoft 支持
可以使用“设置”应用配置和管理 Windows Hello。. 在 Windows 设备上的“设置”应用中 ,选择“ 帐户 ”> “登录选项 ”或使用以下快捷方式:. 登录选项. 在 “登录方式” 下,有三种使用 Windows Hello 登录的选项:. 选择“人脸识别 (Windows Hello) ”,使用电脑的红外 ...
Change your default browser in Windows - Microsoft Support
Change your default browser in Windows. Select Start > Settings > Apps > Default apps . Select Microsoft Edge . Next to Make Microsoft Edge your default browser , select Set default . We recommend you transition to Microsoft Edge to enjoy a faster, more secure, and more modern browsing experience. Use the Windows Settings app to change your ...
Defragment your Windows 10 PC - Microsoft Support
Windows 10. Optimizing your drives can help your PC run smoother and boot up faster. To optimize them: Select the search bar on the taskbar and enter defrag. Select Defragment and Optimize Drives. Select the disk drive you want to optimize. Select the Optimize button.
COUNTIF function - Microsoft Support
Argument name. Description. range (required). The group of cells you want to count. Range can contain numbers, arrays, a named range, or references that contain numbers. Blank and text values are ignored. Learn how to select ranges in a worksheet.. criteria (required). A number, expression, cell reference, or text string that determines which cells will be counted.
适用于: Microsoft 365 专属 Excel, Microsoft 365 Mac 版专属 Excel, Excel 网页版, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016
Find your Windows product key - Microsoft Support
Generally, if you bought a physical copy of Windows, the product key should be on a label or card inside the box that Windows came in. If Windows came preinstalled on your PC, the product key should appear on a sticker on your device. If you’ve lost or can’t find the product key, contact the manufacturer. To ensure your product key is ...
适用于: Microsoft 帐户仪表板
Show desktop icons in Windows - Microsoft Support
To view them, right-click the desktop, select View, and then select Show desktop icons. To add icons to your desktop such as This PC, Recycle Bin and more: Select Start , open Settings , then under Personalization , select Themes . Under Themes, scroll down and select Desktop icon settings. Choose the icons you would like to have on your ...
Microsoft 日本語 IME - Microsoft サポート
互換性. Microsoft 日本語 IME は、Windows 10 October 2020 Update (バージョン 2004) の時点で更新され、Windows 11 でも使用可能です。. IME は、 [IME 設定] > [一般] の互換性設定をサポートしています。. 新しい IME で問題が発生した場合は、 [以前のバージョンの Microsoft IME ...
エクスプローラーを見つけて開く - Microsoft サポート
エクスプローラーを見つけて開く. Windows 11のエクスプローラーは、必要なファイルをすばやく簡単に取得するのに役立ちます。. Windows 11でチェックするには、タスク バーまたはスタート メニューで選択するか、キーボードの Windows ロゴ キー + E キー を押し ...
Use System Restore - Microsoft Support
Select the Start button, then type control panel in the search box next to the Start button on the taskbar and select Control Panel (Desktop app) from the results. Search Control Panel for Recovery, and select Recovery > Open System Restore > Next . Choose the restore point related to the problematic app, driver, or update, and then select Next ...