Hotmail が Outlook.com になりました。 サインインして、Outlook.com、Hotmail、Live、または MSN メール アカウントにアクセスする方法について説明します。

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

Get the steps for how to transfer photos and videos from your portable devices to your PC.

Learn how to sign in or out of your Outlook.com email account, and get solutions for common login issues.

Learn about getting started with the new Microsoft Defender on your personal devices including Windows, Mac, Android, and iOS.

Try these solutions if you can't sign in to your Outlook.com, Hotmail, Live, or MSN email account, or you're not sure how to sign in or sign out.

Learn how to add an app to run automatically at startup. Select the Start button and scroll to find the app you want to run at startup.

You can choose which apps will start automatically when you start your device.

Learn how to run Windows Update Troubleshooter to resolve errors downloading or installing Windows updates.

Updates to the default screen and sleep settings now help you use energy more efficiently and extend battery life. You can find efficiency settings in Windows 11 at Settings > System > Power & battery.. For a guided walkthrough of how each of the power and battery settings can improve your device's performance, click the button to open the Get Help app: