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Fix sound or audio problems in Windows - Microsoft Support
If the Get Help app is unable to resolve your sound or audio issue, try the possible solutions listed: 1. Check your speaker output. 2. Run the audio troubleshooter. 3. Verify that all Windows Updates are installed. 4. Check your cables, plugs, jacks, volume, speaker, and headphone connections.
在Microsoft Edge浏览器中使用Microsoft 翻译工具 - Microsoft ...
在Microsoft Edge中翻译网页. 在Microsoft Edge中打开网页。. 浏览器将检测页面的语言,并显示一个菜单,要求你确认是否要翻译页面。. 请执行以下任一操作:. 在 “翻译为 ”下拉列表中,选择要将页面翻译成的语言。. 默认值是为Microsoft Edge设置的语言。. 若要翻译 ...
适用于: Microsoft Edge
Scan a document or picture - Microsoft Support
A scanner you've connected using a wired, wireless, or network connection. An app for scanning files, such as Windows Scan, available for free from Microsoft Store. The Windows Scan app can help you scan pictures or documents and save them to your PC as JPEG, bitmap, or PNG files. For more info, see Install and use a scanner in Windows.
Finding your BitLocker recovery key in Windows - Microsoft Support
Where can I find my BitLocker recovery key? BitLocker likely ensured that a recovery key was safely backed up prior to activating protection. There are several places that your recovery key may be, depending on the choice that was made when activating BitLocker:
在 Excel 中将 IF 与 AND、OR 和 NOT 函数配合使用 ...
AND 和 OR 函数最多可支持 255 个单独条件,但并不建议使用多个条件,因为构建、测试和维护复杂的嵌套公式是非常难的。. NOT 函数仅采用一个条件。. 下面是根据它们的逻辑写出的公式:. 公式. 说明. =IF (AND (A2>0,B2<100),TRUE, FALSE) 如果 A2 (25) 大于 0,并且 B2 (75 ...
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, Excel Web App, Excel for Windows Phone 10
为升级 Windows 11 准备就绪 - Microsoft 支持
安装 Windows 11 在针对你的特定电脑测试和验证 Windows 11 升级后,Windows 更新将指示它已准备好安装。 若要检查 Windows 11 是否已为你的设备准备就绪,请转到“开始” “设置” >“更新和安全性” >“Windows 更新”,然后选择“检查更新”。 如果升级适用于你的设备,并且想要继续,请下载并安装它。
修复 Windows 中的蓝牙问题 - Microsoft 支持
检查蓝牙设备. 确保蓝牙设备已打开、已充电或具有新电池,并且位于电脑的连接范围内。. 然后尝试执行以下操作:. 关闭你的蓝牙设备,等待几秒钟,然后将其重新打开。. 确保你的蓝牙设备位于有效范围内。. 如果你的蓝牙设备无响应或响应迟缓,请检查以 ...
How to sign in to or out of Outlook.com - Microsoft Support
To sign out, go to Outlook.com. Select your account initials or account picture at the top corner of your Inbox. Select Sign out. Tips: If you don't see your picture at the top of screen, check to see if ad blocking is turned on. Sometimes this prevents the picture from showing. If you don't see see Profile or Account options, you can access ...
适用于: Outlook.com
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
屏幕镜像和投影到电脑或无线显示器 - Microsoft 支持
你可以以无线方式将电脑连接到电视、投影仪或支持 Miracast 的其他类型的外部显示器。. 打开电视、投影仪或其他显示器。. 如果你使用的是 Miracast 硬件保护装置或适配器,请确保已将其插入屏幕。. 按 Windows 徽标键 + K ,然后从可用设备列表中选择要强制转换为 ...