Learn about the differences between a Microsoft 365 subscription, Office 2016, and the free Office Online apps.

Get the steps for turning Windows Defender Firewall on or off.

Microsoft Edge を使用すると、Web を参照するときにパスワードを簡単に保存できます。 デスクトップまたはモバイル デバイスの Edge ブラウザーで新しいパスワードを入力すると、ユーザー名とパスワードを記憶するかどうかを Microsoft Edge から確認するメッセージが表示されます。

Having trouble connecting to your email from Outlook on your desktop? Follow these steps to let Outlook diagnose and fix errors in your Outlook mail profile that might be causing the issue.

Learn how to upgrade Windows 10 Home to Windows 10 Pro to access more advanced security and networking features.

If your purchase of Office or Microsoft 365 came with a product key, you enter your product key on one of the websites listed below for your product.

Get steps for how to install a language pack in Windows 10.

Learn how to locate, install, and share files with custom fonts compatible with Microsoft Office applications.

Découvrez comment mettre à jour des pilotes dans Windows à l’aide de Gestionnaire de périphériques pour mettre à jour ou réinstaller un pilote.

We are actively listening to your feedback and will make updates and changes to our feature roadmap based on what you tell us. If you have feedback on what we should consider adding to new Outlook, please use the in-app Help > Give Feedback link.. Feature comparison