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.For this reason, we strongly recommend that you update to the latest version of Windows. Each version of Windows is supported for 18 months.

Sign in using two-step verification or security info; Create app passwords in Security info (preview) Set up a phone call as your verification method

提示: 如果你最近在 Microsoft Store、零售店或在线购物，还可以查看有关你在 Microsoft 购物中获得的积分的详细信息。登录到你的 Microsoft 帐户，并查看商店&赚取历史记录。 请注意，如果你在 18 个月内未赚取或兑换任何内容，Microsoft Rewards 积分将过期。

Creating an online account usually involves entering your information into a form containing multiple fields, such as name, email address, date of birth, password, and more.

To activate using your digital license, you'll need to upgrade to Windows 11 Pro: Save your work and close any open apps.

Why some files won't open in Internet Explorer. Internet Explorer uses add-ons such as Adobe Reader to view some files in the browser. If a file that needs an add-on won't open, you might have an older version of the add-on, which needs to be updated.

New features added for recording video. The new Record window has two screens: Record and Export.. When you select Record, the Record screen opens by default.. If you select Export in the top right of the Record screen, the Export screen opens.. You can switch between the Record and Export screens using the Record and Export buttons in the top bar of the window.

Check for updates in the Phone Link by opening Settings > About > Check for updates.Install any pending updates to make sure your content stays up-to-date. You may also need to check for updates in the Link to Windows app on your Android device.

如果遇到特定文件类型的错误，则可能是编解码器缺失或过时。 若要解决此问题，请执行以下操作： 检查文件属性： 确保电脑上有正确的编解码器来播放媒体文件。 若要检查文件格式和编解码器信息，请右键单击媒体文件，选择“属性”，然后转到“详细信息”选项卡。

The Windows 10 free upgrade offer ended on July 29, 2016. To upgrade to Windows 10, you will need to have a compatible PC and purchase a full version of the software.We recommend that you don’t install Windows 10 on an older device, as some Windows 7 devices are not compatible with Windows 10 or could experience reduced feature availability.