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

Note: If you receive a prompt asking whether to allow the app to access your camera (iOS) or to allow the app to take pictures and record video (Android). select Allow so the authenticator app can access your camera to take a picture of the QR code in the next step.If you don't allow the camera, you can still set up the authenticator app as described in Manually add an account to the app.

Change the size of your desktop icons. To resize desktop icons, right-click (or press and hold) the desktop, point to View, then select Large icons, Medium icons, or Small icons.

A complete list of all Excel functions in alphabetical order.

Learn how to troubleshoot and fix problems setting up your email in Outlook.

回復ドライブの作成をお勧めします。 これにより、PC でハードウェア障害などの大きな問題が発生した場合は、回復ドライブを使用してWindows 11を再インストールできます。

When you initially setup your Windows device, you might have opted to use a local account instead of a Microsoft account. The main difference between a local account and a Microsoft account is that a local account is specific to one device, while a Microsoft account can be used across multiple devices and Microsoft services.

Warning: Excel provides the DATEDIF function in order to support older workbooks from Lotus 1-2-3.The DATEDIF function may calculate incorrect results under certain scenarios. Please see the known issues section of this article for further details.

Learn how to connect to a projector or to another PC in Windows using the keyboard shortcut "Windows logo key + P", the Connect app (for Windows 10), or the Wireless Display app (for Windows 11).

How to use the INDEX function in Excel to return a value or reference to a value within a table or range.