Go to the Microsoft account sign-in page at https://account.microsoft.com and enter your email address. If you see a message that says "We couldn't find an account with that username." or "That Microsoft account doesn't exist", then the address you entered is not a Microsoft account. If you believe it should be: The account may have been closed.

如果未提示使用相机扫描 QR 代码，请在手机设置中确保Authenticator应用有权访问手机摄像头。 使用 QR 代码添加帐户后，可以设置电话登录。 如果收到消息“你可能正在从受管理员限制的位置登录”，则管理员尚未为你启用此功能，并且可能设置了安全信息注册条件访问策略。

若要手动从Windows 11 家庭版升级到Windows 11 专业版，请先检查运行的版本和激活状态：. 选择“ 开始 ”>“ 设置 ”>“ 系统 ”>“ 激活 ”。. 在“ 激活 ”页面顶部，可以看到你的版本：家庭版或专业版。. 你还将在“ 激活状态 ”下看到是否已激活。. 打开激活 ...

For more information see How to back up and restore the registry in Windows. There are two ways to open Registry Editor in Windows 10: In the search box on the taskbar, type regedit, then select Registry Editor (Desktop app) from the results. Right-click Start , then select Run. Type regedit in the Open: box, and then select OK.

To check for updates, select Start > Settings > Windows Update , then select Check for updates. If updates are available, you can choose to install them. Check for updates. If you run into problems updating your device, including problems with previous major updates, see common fixes at Troubleshoot problems updating Windows.

Вы можете выбрать фон рабочего стола и изменить его в любое время. Windows 11Windows 10. Выберите Пуск > Параметры > Персонализация> фон. В списке рядом с полем Персонализация фонавыберите Рисунок ...

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A workbook is a file that contains one or more worksheets to help you organize data. You can create a new workbook from a blank workbook or a template. By default, a new workbook contains three worksheets, but you can change the number of worksheets that you want a new workbook to contain. You can also add and remove worksheets as needed.

Here’s how to install the Media Feature Pack: On Windows 10 N: Select the Start button, then select Settings > Apps > Apps and Features > Optional features > Add a feature. Find the Media Feature Pack in the list of available optional features. On Windows 11 N: Select the Start button, then select Settings > Apps > Optional features.

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