Windows Security provides built-in security options to help protect your device from malicious software attacks. To access the features described below, tap the Windows Start button, type windows security, select it from the results, and then select Device security.

Important: If your device is out of support, it is no longer receiving security updates from Microsoft and may become more vulnerable to security risks and viruses.Therefore, we strongly recommend that you update to the latest version of Windows. Each version of Windows is supported for 18 months.

Training: Watch and learn how to create a PowerPoint presentation, add/format text, and add pictures, shapes, and/or charts.

Choose number of pages to print per sheet: Printing multiple pages on a single sheet of paper is a useful technique to save paper, reduce printing costs, and create compact versions of your documents. The number of pages that can be printed on a single sheet depends on the capabilities of your printer and the printing options you choose (Example: 1, 2, 4, 6, 9 or 16 pages per sheet).

如果注册表编辑不正确，可能会发生严重问题，这些问题可能需要完全重新安装操作系统，导致数据丢失。 避免任何非正式来源建议的编辑。 为了增加保护，在基于官方发布的 Microsoft 文档进行编辑之前，请务必备份注册表。 然后，如果出现问题，可以还原它。

To get support in Outlook.com, click here or select Help on the menu bar and enter your query. If the self-help doesn't solve your problem, scroll down to Still need help? and select Yes.. To contact us in Outlook.com, you'll need to sign in.

Microsoft support is here to help you with Microsoft products. Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows, Surface, and more.

Press the Xbox button to open the guide, and then go to Profile & system.; Select your Xbox profile (or select Choose a profile and sign in to your account).; Select My profile > Customize profile, and then select your current gamertag.; Under Choose your new gamertag, enter the gamertag that you want in the available text box, and then select Check availability.

Near the upper right corner of the message list, select Filter > Unread. Tip: The name of the filter button changes to Unread to indicate which filter is applied. When you want to remove the filter so that you can see all the messages in the current folder, simply click the Unread filter button.

Unlinking and re-linking your computer to OneDrive can help solve some sync problems. You can also use these same steps to move your OneDrive to a new location, such as an external disk drive.