Notes: If you know your password, but just want to change it, go to account.microsoft.com Security tab, and select Change my password. If you know your username and password but they have stopped working, read My username and password have stopped working.

Windows 10、Windows 11、Surface ドライバー、およびファームウェアの自動更新. 準備の手順に続いて、Windows 更新プログラム を参照して、更新プログラムを確認してインストールします。 または、下の [Windows の更新プログラムを確認する] ボタンを選択すると、Windows の更新プログラムを設定で開き ...

Examples. Following are examples of some common nested IF(AND()), IF(OR()) and IF(NOT()) statements in Excel. The AND and OR functions can support up to 255 individual conditions, but it’s not good practice to use more than a few because complex, nested formulas can get very difficult to build, test and maintain.

Découvrez comment activer Office préinstallé sur de nouveaux PC Windows 10 ou à l’aide d’une nouvelle clé de produit.

Check the Xbox services, games, and apps for any service outages.

The Teams Meeting add-in lets you schedule a Teams meeting from Outlook. The add-in is available for Outlook on Windows, Mac, web, and mobile, and should be automatically installed if you have Microsoft Teams and either Office 2016, Office 2019, or Office 2021 installed on your Windows PC.

Once you've created a Microsoft 365 Group, use Edit Group to make updates to its photo, name, email address, description, settings, and members.. You can delete a group and all of its content on the same Edit Group screen. Remember, you can restore a deleted group for up to 30 days after it's deleted.

Learn how to remove malware from your PC. Use Microsoft Defender Antivirus in Windows 10 or Windows 11 to scan your PC for malware, viruses, or other threats.

How to change your email password. If you intend to change your email password, you must do that with your email provider (e.g., Microsoft 365, Gmail, Yahoo, iCloud, Xfinity, or a corp. Exchange server).

When you see unexpected charges from Microsoft in a statement from your bank, credit card, or any other payment provider, we want to help you resolve your question as quickly as possible.