Get more out of your email with Outlook.com. We've streamlined search to make it easier than ever to find what you're looking for. New features like Files and attachment previews let you see your pictures and files without leaving your inbox.

Learn how to activate Office pre-installed on new Windows 10 PCs or with a new product key.

Important: you should limit the number of administrators on your Windows device because administrators have complete control over the system.Administrators can change settings, install software, and access all files. If too many people have this level of access, it could lead to security risks like malware installation or unwanted changes to your system.

To use your camera with apps on Windows 11, you'll need to turn on some permissions in Camera settings. Then, you'll need to check your app permissions if you want to use your camera with apps.

注: Microsoft アカウントとして所有しているメール アドレスを使用するか、サインアップ時に [新しいメール アドレスを取得する] または [代わりにメールを使用する] を選択して新しいアドレスを作成できます。

On the Email tab, choose your account (profile), and then choose Repair.

Windows Security provides built-in security options to help protect your device from malicious software attacks. To access the features described below, tap the Windows Start button, type windows security, select it from the results, and then select Device security.

Open User Accounts by clicking the Start button , clicking Control Panel, clicking User Accounts and Family Safety, clicking User Accounts, and then clicking Manage another account .. If you're prompted for an administrator password or confirmation, type the password or provide confirmation.

If prompted, enter your password. However, if you have two-factor authentication set up, you might see a window asking you to Create an app-specific password.To obtain an app-password, do the following:

The Program Install and Uninstall troubleshooter helps you automatically repair issues when you're blocked from installing or removing programs.