On the Outlook status bar, if you see Disconnected, Working Offline, or Trying to connect…, then Outlook can't reach the email server to send your mail.. To fix this problem, on the ribbon, select the Send/Receive tab, then, in the Preferences group, select Work Offline to toggle between offline mode and online mode.You may need to open the message and send it again or choose Send/Receive.

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

How to create a checklist in Word that can be filled out by using checkbox controls.

This article describes step for users to allow all Web sites in the Internet zone to run JavaScript in Internet Explorer, Chrome, and Firefox.

To use your microphone with apps on Windows 10, you'll need to turn on some permissions in Microphone settings. Then, you'll need to check your app permissions if you want to use your microphone with apps.

Windows でセーフ モードで起動する方法については、「設定」、サインイン画面、黒または空白の画面を参照してください。

How to use a PivotTable in Excel to calculate, summarize, and analyze your worksheet data to see hidden patterns and trends.

Get Microsoft 365 support, help, and learning resources. Organize your life, expand your creativity, and protect what’s important with Microsoft 365

Learn how to open, navigate, and troubleshoot File Explorer in Windows, with answers to common questions and support assistance.

Outlook stores backup files containing email, calendars, contacts, tasks, and notes on your computer. Learn how to find them.