Learn how to change Microsoft account email address or phone number using aliases to sign into your Microsoft account.

Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

アプリを右クリックし、[その他] を選択して、[ファイルの場所を開く] を選択します。 これにより、アプリのショートカットが保存されている場所が開きます。 [ファイルの場所を開く] のオプションがない場合は、そのアプリを起動時に実行できないことを意味します。

如何将 IF 函数 (与 Excel 中) AND、OR 和 NOT 函数结合使用，以在给定值之间进行逻辑比较。

Learn about the recovery options in Windows. Find out how to reset your PC, go back to a previous version of Windows, or use media to reinstall Windows.

A list of Excel training, from entry level to advanced skills, plus templates and other resources.

Learn how to change the power mode on your Windows PC to preserve your battery, limit notifications, and background activity.

In Windows 11 22H2, the default app used to host console windows has been changed to Windows Terminal. After the October 2022 update, Command Prompt, Windows PowerShell, and other console apps will appear inside an instance of Windows Terminal.

Learn how to change settings to enable Secure Boot if you are not able to upgrade to Windows 11 because your PC is not currently Secure Boot capable.

Learn more about how to fix problems with the Windows Start menu, and what to do if the Start menu won't open.