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屏幕镜像和投影到电脑或无线显示器 - Microsoft 支持
在投影的电脑上,选择 “Windows 徽标键 + K ”,然后选择要连接到的电脑。 或者,可以在 Windows 搜索栏中搜索 “强制转换 ”,然后选择“ 连接到无线显示器”。在“显示设置”页上的“ 多个显示器”下,选择“ 连接到无线显示器”,然后选择“ 连接”。
Create and add an email signature in Outlook.com or Outlook on the web
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 on the web, Outlook.com, Outlook on the web for Exchange Server 2016, Outlook on the web for Exchange Server 2019
View, manage, and install add-ins for Excel, PowerPoint, and Word ...
When you enable an add-in, it adds custom commands and new features to Microsoft 365 programs that help increase your productivity. Because add-ins can be used by attackers to do harm to your computer, you can use add-in security settings to help protect yourself.
Applies To: Excel for Microsoft 365, Word for Microsoft 365, PowerPoint for Microsoft 365, Excel for Microsoft 365 for Mac, Word for Microsoft 365 for Mac, PowerPoint for Microsoft 365 for Mac, Excel for the web, Word for the web, PowerPoint for the web, Excel 2021, Word 2021, PowerPoint 2021, Excel 2021 for Mac, Word 2021 for Mac, PowerPoint 2021 for Mac, Excel 2019, Word 2019, PowerPoint 2019, Excel 2019 for Mac, Word 2019 for Mac, PowerPoint 2019 for Mac, Excel 2016, Word 2016, PowerPoint 2016, InfoPath 2013
Get Windows updates as soon as they're available for your device
We're committed to delivering continuous innovation by releasing new features and enhancements into Windows 11 more frequently. Windows devices get new functionality at different times as Microsoft delivers non-security updates, fixes, improvements, and enhancements via several servicing technologies—including controlled feature rollout (CFR). ...
Change your screen saver settings - Microsoft Support
Select the Start button, then go to Settings > Personalization > Lock screen, and select Screen saver settings.In the Screen Saver Settings window, choose a screen saver from the drop-down list. Change your screen saver settings
Record a meeting in Microsoft Teams - Microsoft Support
Notes: Meeting recordings won't capture whiteboards, annotations, shared notes or content shared in the stage view by apps, and also won't include videos or animations embedded in PowerPoint Live presentations.
Applies To: Microsoft Teams
Office Help & Training
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为什么需要 Microsoft 帐户,或者使用 Microsoft 365 或 Office 的工作或学校帐户
什么是 Microsoft 帐户. Microsoft 帐户是用于访问许多 Microsoft 设备和服务的免费帐户,例如基于 Web 的电子邮件服务 Outlook.com (也称为 hotmail.com、msn.com、live.com) 、Word或Excel 网页版、Skype、OneDrive、Xbox Live、必应、Windows 或 Microsoft Store 等在线应用。
Applies To: Office 2016, Office 2013
Check your device performance and health in Windows Security
The Health report starts off by showing you the last time a Device Health scan was run. The time displayed should be basically the current time, as Windows Security tries to run a Device Health scan when you open the Device performance & health page.. Beyond the time of last scan you'll see the status of the key areas that Device Health monitors:
Update your security processor (TPM) firmware - Microsoft Support
2. Install any applicable firmware updates. If you have a Surface device, see Security issue for TPM on Surface devices for more information and instructions.. If your device is not from Microsoft, locate the device manufacturer of your device in the following table, select the corresponding link, and apply the firmware update that's provide.