How to use the SUMIF function in Excel to add the values in a range that meet criteria that you specify.

Découvrez comment installer un scanneur et l’utiliser pour numériser des images et des documents dans Windows 10.

Experience Microsoft Copilot on windows devices using the Copilot app! The Copilot app helps you get answers and inspiration from across the web, supports creativity and collaboration, and helps you focus on the task at hand.

Learn how to use the taskbar features in Windows. Hide the taskbar, pin an app, change the location, and more with taskbar settings.

Change your screen saver settings. 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.

Create a top-level folder in new Outlook. In the folder pane on the left, right-click your email address, or hover over it and select More options > Create new folder.

By signing in with a Microsoft account, the new MSN allows you to personalize your experience on MSN.

If you need help with Outlook.com, you can read our self-help content, or get support via email.

The Planner app in Microsoft Teams brings together all your tasks and plans across the Microsoft 365 ecosystem in a single convenient location. It helps you manage tasks more efficiently for individual plans and team initiatives, as well as larger scale projects that are aligned to goals and key strategic objectives.

How to use the COUNT function in Excel to count the number of cells that contain numbers, and to count numbers within a list of arguments.