Microsoft Defender is a security app that helps people and families stay safer online with malware protection, web protection, real-time security notifications, and security tips.Microsoft Defender is included in a Microsoft 365 Family or Personal subscription and works on your phone (Android or iOS), PC, and Mac.

Using the new Microsoft Teams, you can now be logged into multiple work, school, and personal accounts on the Windows desktop app. Easily switch back and forth between organizations, including guest organizations. See and change your notification settings for your various accounts.

Notes: If you know your password, but just want to change it, go to account.microsoft.com Security tab, and select Change my password. If you know your username and password but they have stopped working, read My username and password have stopped working.

Select the cell you want to combine first. Use commas to separate the cells you are combining, use quotation marks to add spaces, commas, other text, or the ampersand symbol (&) with the next cell you want to combine.

Outlook.com support categories. Email | Calendar | People & Contacts | Files & attachments | To Do | Premium | Account | Troubleshoot. Trending topics in Outlook.com. To change your Mail settings so your inbox looks and behaves the way you want it to, see Personalize your new Mail experience in Outlook.com.Also check out the Outlook.com Community forum.

Learn how to run Windows Update Troubleshooter to resolve errors downloading or installing Windows updates.

Learn how to manage your Microsoft devices. Add, remove, register, or rename a device on your Microsoft account.

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Note As a limited exception, digital game products may be eligible for a refund within 30 days if you’re unsatisfied with the license agreement or warranty, but only if you do not make or retain any copies.

To speed up the process of selecting a choice when a dialog box appears, under Snap To, select the Automatically move pointer to the default button in a dialog box check box.(Not all programs support this setting. In some programs, you'll need to move the mouse pointer to the button you want to click.)