Learn how to set up Microsoft Family Safety to manage screen time, filter content, and share location with your family members.

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

The files you store on a SharePoint site are usually available to everyone with permissions to the site, but you may want to share specific files or folders with people who don't otherwise have access to the site.

With the Microsoft Forms Quick Poll add-in for Outlook or Outlook Web App, you can create a poll in seconds right within an email message.

Windows backup and sync settings sync the settings you choose across all your Windows devices that you've signed in to with your Microsoft account.

Learn how to redeem your Microsoft Rewards points for a huge variety of great products and sweepstakes.

Change your screen saver settings. Select the Start button, then go to Settings > Personalization > Lock screen, and select Screen saver settings.In the Screen Saver Settings window, choose a screen saver from the drop-down list.

See an alert in a pop-up window on the bottom of Windows desktop when new email messages arrive in your Outlook Inbox.

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

即使已开启其他防火墙，开启 Microsoft Defender 防火墙也很重要。 它保护你免遭未经授权的访问。 若要打开或关闭 Microsoft Defender 防火墙，请执行以下操作：