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Windows Update: FAQ - Microsoft Support
Learn how to get the latest Windows updates. Find answers to FAQ about updating Windows to keep your PC up to date.
Microsoft Store & billing help
Get Microsoft billing support. Find help with Microsoft Store purchases, subscriptions, refunds, payment options, and checking your order history.
Headers and footers in a worksheet - Microsoft Support
Add or change headers and footers in Excel. Add the date, time, page numbers, filename or any other text.
Applies To: Excel for Microsoft 365, Excel 2021, Excel 2019, Excel 2016
Find or replace text and numbers on a worksheet
Learn how to quickly find or replace text and numbers in Excel with simple steps and examples. Save time and improve your data accuracy.
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
Télécharger les pilotes d’imprimante dans Windows
Télécharger les pilotes d’imprimante. Si votre imprimante ne répond pas, vous devrez peut-être la supprimer et la réinstaller pour Windows pouvez télécharger et installer les pilotes appropriés.
Using the Windows Activation troubleshooter - Microsoft Support
Learn how to use the Activation troubleshooter to resolve common activation issues in Windows.
Use Image Creator in Paint to generate AI art - Microsoft Support
Learn how to use Image Creator in Paint to generate diverse and realistic images using a powerful AI model called DALL-E.
Set screen time limits across devices - Microsoft Support
Learn how to manage and set device screen time limits on Windows, Xbox, and mobile devices connected through the Microsoft Family Safety app.
Applies To: Microsoft Family Safety
Add co-organizers to a meeting in Microsoft Teams
After you've invited people to your meeting, you can add up to 10 co-organizers to help manage your meeting. Co-organizers are displayed as additional organizers in the meeting participant list and have most of the capabilities of the meeting organizer.
Applies To: Microsoft Teams
DATEDIF function - Microsoft Support
Warning: Excel provides the DATEDIF function in order to support older workbooks from Lotus 1-2-3.The DATEDIF function may calculate incorrect results under certain scenarios. Please see the known issues section of this article for further details.
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, SharePoint Foundation 2010, SharePoint Server 2010, Windows SharePoint Services 3.0