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修复麦克风问题 - Microsoft 支持
麦克风音量过低或似乎完全无法工作. 请尝试以下解决方案:. 确保麦克风或耳机已正确连接到计算机。. 确保麦克风摆放在正确的位置。. 提高麦克风音量。. 下面将了解如何在Windows 11:. 选择 "开始>设置>系统 > 声音"。. 在 "输入 "中,选择麦克风以查看其属性 ...
安装 Windows 7 Service Pack 1 (SP1) - Microsoft 支持
安装 Windows 7 Service Pack 1 (SP1) Windows 7 支持已于 2020 年 1 月 14 日结束。. 我们建议你转到 Windows 11 电脑来继续从 Microsoft 接收安全更新。. 获取 SP1的推荐(并且最简单)方法是在“控制面板”中的“Windows 更新”中打开自动更新,然后等待 Windows 7 通知你 SP1 已准备 ...
Contact Us - Microsoft Support
Select the product you need help with. We'll show you self-help options first. Additional help is available if you need it, including live chat with a Microsoft specialist. Microsoft 365. Office. Windows. Xbox. Surface devices. Copilot.
Download printer drivers in Windows - Microsoft Support
Download printer drivers in Windows. If your printer isn't responding, you may need to remove it and reinstall it so Windows can download and install the proper drivers. Make sure your printer is on and connected to your PC. Open Start > Settings > Bluetooth & devices > Printers & scanners . Select the name of the printer, and then choose Remove.
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.
WENN-Funktion – Geschachtelte Formeln und das Vermeiden von Fallgruben
Die WENN-Funktion ermöglicht einen logischen Vergleich zwischen einem aktuellen Wert und einem erwarteten Wert. Dazu wird auf eine Bedingung geprüft und ein Ergebnis zurückgegeben, wenn der Wert wahr oder falsch ist. WENN (ein Wert wahr ist, tue dieses, andernfalls tue etwas anderes) Daher kann eine WENN-Anweisung zwei Ergebnisse haben.
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, Excel Web App, Excel for Windows Phone 10
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 ...
Applies To: Outlook.com
Windows で PC をセーフ モードで起動する - Microsoft サポート
pc が再起動すると、オプションの一覧が表示されます。 4 を選択するか f4 キーを押し、セーフ モードで pc を起動します。 または、インターネットを使用する必要がある場合は、[ 5] を選択するか、f5 キーを押して [セーフ モードとネットワーク] を選択します。
Enable and disable your touchscreen in Windows - Microsoft Support
Select the arrow next to Human Interface Devices and then select HID-compliant touch screen. (There may be more than one listed.) Select the Action tab at the top of the window. Select Disable device or Enable device, and then confirm. If there's more than one HID-compliant touchscreen device listed, perform steps 2–3 for that one too.
Outlook.com 的 POP、IMAP 和 SMTP 设置 - Microsoft 支持
如果尝试将 Outlook.com 帐户添加到 Outlook 或其他邮件应用,可能需要 POP、IMAP 或 SMTP 设置。. 可以在下面找到它们,也可以在 Outlook.com 设置 中查看它们。. Outlook 和 Outlook.com 可能能够自动检测帐户的邮箱设置,但对于其他非 Microsoft 帐户,可能需要联系电子邮件 ...
Applies To: Outlook for Microsoft 365, Outlook for Microsoft 365 for Mac, Outlook 2021, Outlook 2021 for Mac, Outlook 2019, Outlook 2019 for Mac, Outlook 2016, Outlook 2016 for Mac, Outlook 2013, Outlook Web App for Office 365, Outlook Web App for Office 365 Small Business, Outlook on the web, Outlook.com, Outlook Web App for Office 365 operated by 21Vianet, Outlook Web App Light, Outlook 2010, Outlook 2007, New Outlook for Windows, Outlook for Android, Outlook Mail for Windows 10, Outlook on the web for Exchange Server 2016, Outlook on the web for Exchange Server 2019, Outlook Web App