Find operating system info in Windows 8.1 or Windows RT 8.1. To find out which version of Windows your device is running, press the Windows logo key key + R, type winver in the Open box, and then select OK.. If your device is running Windows 8.1 or Windows RT 8.1, here’s how to learn more:

Buy stuff from Microsoft Store online (from your mobile device, on Xbox One, in the Microsoft Store app on your Windows 10/11 or Windows 8.1 device, or via the web).

Windows devices may get new functionality at different times as Microsoft delivers non-security updates, fixes, improvements, and enhancements via several servicing technologies—including controlled feature rollout (CFR).. Windows will let you know if you need to restart your device to complete an update, and you can choose a time that works best for you to complete that update.

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

Learn how to activate Office pre-installed on new Windows 10 PCs or with a new product key.

現在 Windows 10 を実行している場合、PC 正常性チェックにより、お使いのデバイスが Windows 11 の最小システム要件を満たす適格なものかどうかを確認するための包括的なチェックが実行されます。 お使いのデバイスが適格である、またはそうではない理由と、デバイスが要件を満たさない場合に ...

按住 Xbox 按钮 3 秒打开控制器。 打开控制器时，Xbox 按钮 将开始闪烁。 长按控制器顶部的的“配对”按钮 （凸起按钮）。 控制器上的 Xbox 按钮 将加速闪烁 - 这意味着控制器正在搜索电脑。; 在电脑上，按“开始”按钮 ，然后选择“设置” > 设备（在 Windows 11 上：设置 > 蓝牙和设备）。

Internet Explorer 11 support ended on June 15, 2022. If any site you visit needs Internet Explorer 11, you can open it with Internet Explorer mode in Microsoft Edge.

1. Sign in with your Microsoft account. You will be prompted to Sign in with Microsoft account. If you have an existing Microsoft account on your mobile device then you will be asked to confirm your account, then click Continue.. If you don't have an existing Microsoft account on your mobile device then you will be asked to sign into your account or create a new one, then click Continue.

When you first sign into Microsoft Defender on Android, we'll walk you through a few easy steps that start with setting up web protection.During this process, we'll ask you to give Defender permission to do two things: run in the background and use the Accessibility Service.