"Access Denied" or other errors when you access or work with files and ...
Discusses how to troubleshoot problems that occur when you try to access or work with files and folders in Windows.
Phone Link help & learning
Discover how to use Microsoft Phone Link to connect your Android or iPhone to your PC for seamless access to notifications, calls, and apps.
Firewall & network protection in Windows Security - Microsoft Support
Firewall & network protection in Windows Security lets you view the status of Microsoft Defender Firewall and see what networks your device is connected to.
How to use the PC Health Check app - Microsoft Support
How to open PC Health Check. In Windows, use Search on the taskbar to search for “PC Health Check,” then select it from the list of results.
Make your mouse, keyboard, and other input devices easier to use
Learn how to use Windows accessibility features to make your mouse, keyboard, and other input devices easier to use.
Téléchargez et installez ou réinstallez Microsoft 365 ou Office 2021 ...
Découvrez comment installer, réinstaller ou activer Microsoft 365 ou Office 2019 sur un PC ou Mac.
Applies To:
Office 2021, Office 2021 for Mac, Office 2019, Office 2019 for Mac, Microsoft 365 for home, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Admin, Microsoft 365 for Mac, Office 365 Germany - Enterprise, Office 365 Germany - Enterprise admin, Office.com
SUMIFS function - Microsoft Support
How to use the SUMIFS function in Excel, one of Excel’s math and trig functions, to add arguments that meet multiple criteria.
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
Share and access another person's mailbox or folder in Outlook
You can access another person’s mailbox if you have been granted the appropriate permissions to their mailbox. Consider these scenarios: A manager needs an assistant to monitor a specific folder on his or her mailbox.
Applies To:
Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Outlook Web App for Office 365, Outlook Web App for Office 365 Small Business, Outlook on the web, New Outlook for Windows, Outlook Web App
How to add an email address or phone number to your Microsoft account
When your old email address or phone number doesn't suit you anymore—but you want to retain your contacts, online storage, subscriptions, and settings—you can add a new email address or phone number as an alias to your existing Microsoft account.
Open your entire favorites bar in Microsoft Edge
How to open all of your Favorites Bar shortcuts in the Microsoft Edge web browser.