Find out how to change the color of the Start menu, taskbar, and action center with dark and custom mode personalization settings.

Learn how to use the Activation troubleshooter to resolve common activation issues in Windows.

Choose how you want emails displayed in the message list, such as whether you want emails displayed as individual messages or as conversations.

Use the Windows 10 Settings app to change your desktop background color.

Add or remove items from an existing drop-down list (also called a drop-down menu or drop-down box).

Use a ready signature template from a gallery to create your email signature in Outlook.

了解在 Windows 中查找 BitLocker 恢复密钥的不同方法，并了解如何在系统上激活 BitLocker。

Learn to add email accounts such as Gmail and Yahoo! Mail to your Outlook.com app so you can view all of your mail from one location.

How to access and change the privacy settings in Windows 10 and 11.

忘れた場合や紛失した場合に Windows パスワードを変更またはリセットする方法について説明します。