Please note the January 2021 nonsecurity preview release, also known as the “C” release, was released February 2, 2021 and is separate from the January security release, also known as the “B” release, which was released January 12, 2021.

プロダクト キーまたはデジタル ライセンスを使用して Windows をライセンス認証し、ライセンス認証の状態を確認し、Microsoft アカウントをリンクする方法について説明します。

Get more information about managing your Xbox subscriptions, issues with billing, and more.

Ten days after you upgrade to Windows, your previous version of Windows will be automatically deleted from your PC. However, if you need to free up drive space, and you’re confident that your files and settings are where you want them to be in Windows, you can safely delete it yourself.

Find out how to submit a case review and learn more about your Xbox enforcements.

On your PC, go to Xbox.com and select Sign in.If there are problems with your account, the instructions will help you solve them. If you can’t go beyond the sign-in screen, select Forgot my password and follow the instructions.

Défragmenter votre ordinateur Windows 10. L’optimisation de vos lecteurs permet à votre PC de fonctionner de manière plus fluide et de démarrer plus rapidement.

通知中心位于任务栏的右端。 它包含你可能经常选择的图标：电池、Wlan、音量、时钟和日历以及通知中心。 它还提供有关传入电子邮件、更新和网络连接等内容的状态和通知。

此错误意味着设备驱动程序、设备内存或设备上的防病毒软件可能存在问题。 你可以尝试以下操作： 请通过检查最新的 Windows 更新，确保你的驱动程序是最新的。

深色主题将新版 Microsoft Edge 中的默认明亮背景色更改为较深的颜色，从而在光线较暗的环境中让眼睛更加舒适，或者迎合喜欢较暗界面的用户。. 下面介绍如何激活深色模式： 转到"设置"和"更多 >设置"。