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Windows - Microsoft
若要检查更新,请选择“ 开始 > 设置 > Windows 更新 ”,然后选择“ 检查更新 ”。. 如果有可用的更新,可以选择安装它们。. 检查更新. 如果在更新设备时遇到问题(包括以前的主要更新出现问题),请参阅 排查更新 Windows 问题 中的常见修补程序。. 如果Windows ...
Encrypt email messages - Microsoft Support
In an email message, choose Options, select Encrypt and pick the encryption that has the restrictions you want to enforce, such as Encrypt-Only or Do Not Forward. Note: Microsoft 365 Message Encryption is part of the Office 365 Enterprise E3 license. Additionally, the Encrypt-Only feature (the option under the Encrypt button) is only enabled ...
适用于: Microsoft 365 专属 Outlook, Outlook 2021, Outlook 2019, Outlook 2016
Account has been locked - Microsoft Support
Why accounts are locked and disabled. Microsoft accounts are usually locked if the account holder has violated our Microsoft Services Agreement.Here are some common reasons why accounts are locked, though not all account locks occur for these reasons:
Solucionar problemas de sonido o audio en Windows
Si la aplicación de Obtener ayuda no puede resolver el problema de sonido o audio, prueba las posibles soluciones enumeradas: 1. Comprueba la salida del altavoz. 2. Ejecuta el solucionador de problemas de audio. 3. Verifica que todas las actualizaciones de Windows estén instaladas. 4. Comprueba los cables, enchufes, tomas, volumen, altavoces ...
Getting the most out of your PC backup - Microsoft Support
Getting the most out of your PC backup. When you back up your files, apps, and settings in the cloud using your Microsoft account, you get 5 GB of free cloud storage and other benefits that protect your files with the latest security and make everyday tasks easier. Your Microsoft account ties everything together, no matter where you are or what ...
What's the difference between Microsoft 365 and Office 2021?
Office 2021 is sold as a one-time purchase, which means you pay a single, up-front cost to get Microsoft 365 apps for one computer. One-time purchases are available for both PCs and Macs. However, there are no upgrade options, which means if you plan to upgrade to the next major release, you'll have to buy it at full price.
适用于: Office 2021, Office 2021 for Mac, Office 2019, Office 2019 for Mac, Microsoft 365 家庭版, Office 商业版, Microsoft 365 管理员
COUNTIFS function - Microsoft Support
COUNTIFS (criteria_range1, criteria1, [criteria_range2, criteria2]…) The COUNTIFS function syntax has the following arguments: criteria_range1 Required. The first range in which to evaluate the associated criteria. criteria1 Required. The criteria in the form of a number, expression, cell reference, or text that define which cells will be ...
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
Getting ready for the Windows 11 upgrade - Microsoft Support
To check if Windows 11 is ready for your device, go to Start > Settings > Update & Security > Windows Update and select Check for updates. If the upgrade is available for your device and you want to proceed, download and install it. Note: Downloading and installing Windows 11 will most likely take longer than a typical Windows 10 feature update.
Troubleshoot external monitor connections in Windows 10
Troubleshoot external monitor connections in Windows 10. Windows 10. Before considering troubleshooting options, make sure your device is up to date. Select Start > Settings > Update & Security > Windows Update , then select Check for updates. If you need help setting up your external monitors, see How to use multiple monitors in Windows 10.
Camera doesn't work in Windows - Microsoft Support
If that doesn't work, or your camera is built in on your device, try this: Select Start , type device manager, then select it from the search results. Find your camera under Cameras, Imaging devices , or Sound, video and game controllers. If you can't find your camera, select the Action menu, then select Scan for hardware changes.