Learn how to change the refresh rate for your display in Windows to determine how smoothly motion appears on your screen.

There are different ways to remove apps and programs, so if you can't find the one you're looking for, you can try another location. Note that some apps and programs are built into Windows and can't be uninstalled.

Learn how to access Windows device security settings in Windows Security to help protect your device from malicious software.

Learn how to troubleshoot Windows activation errors. Browse common activation errors and learn what you can do to fix them.

Discover the latest features in Office 2021, including new ways to create content, manage data, and communicate effectively.

Hotmail est maintenant Outlook.com. Découvrez comment vous connecter pour accéder à votre compte de messagerie Outlook.com, Hotmail, Live ou MSN.

Notes about this update. When this update is installed, Windows may attempt to download and install feature updates to your device if it is approaching or has reached the end of support for your currently installed Windows version.

Find your product key to activate Windows. A product key is a 25-character code that's used to activate Windows and helps verify that Windows hasn't been used on more PCs than the Microsoft Software License Terms allow.

Learn why it's important to have a backup, and how Windows Backup can help you keep your files and settings safe.

Découvrez comment installer, réinstaller ou activer Microsoft 365 ou Office 2019 sur un PC ou Mac.