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Product activation for Windows – online & support telephone numbers
To activate Windows 10 using an internet connection: As Windows 10 will automatically activate if you are connected to the internet, you can confirm your activation status by selecting Start > Settings > Update & Security > Activation and looking under Windows.. If online activation fails, first try the activation troubleshooting in Activate Windows 10.
Fix a corrupted user profile in Windows - Microsoft Support
Copy files to the new user profile. After you create the profile, you can copy the files from the existing profile. You must have at least three user accounts on the computer to complete these steps, including the new account you just created.
通过蓝牙接收文件 - Microsoft 支持
在“蓝牙和其他设备”设置中,选择“通过蓝牙发送或接收文件”>“接收文件”。
为升级 Windows 11 准备就绪 - Microsoft 支持
安装 Windows 11. 在针对你的特定电脑测试和验证 Windows 11 升级后,Windows 更新将指示它已准备好安装。 若要检查 Windows 11 是否已为你的设备准备就绪,请转到“开始” “设置” >“更新和安全性” >“Windows 更新” ,然后选择“检查更新”。 如果升级适用于你的设备,并且想要继续,请下载并安装它。
February 13, 2024—KB5034765 (OS Builds 22621.3155 and 22631.3155)
Windows 11, version 22H2; July 25, 2024—KB5040527 (OS Builds 22621.3958 and 22631.3958) Preview; July 9, 2024—KB5040442 (OS Builds 22621.3880 and 22631.3880)
如何打开通知中心和快速设置 - Microsoft 支持
若要打开设置,请执行下列任一操作: 选择电池、网络或音量图标以打开"快速设置面板。
从 Microsoft Store 应用重新安装 Office - Microsoft 支持
Windows 设备上预安装的某些 Office 产品无需产品密钥即可激活,其中一些 Office 产品在激活期间不需要Microsoft帐户。
Applies To: Office 2021
How to get and use app passwords - Microsoft Support
After you turn on two-step verification or set up the Authenticator app, you may run into issues if you use older devices (like Xbox 360 or a mail-sending security camera) that don't support two-step verification. For those devices, you can sign in with an app password instead. An app password is a long, randomly generated password that you provide only once instead of your regular password ...
Windows 中的恢复选项 - Microsoft 支持
你的电脑无法启动或仍在加载. 使用启动修复功能. 你的电脑无法启动,恢复驱动器尚未创建,并且初始化电脑不起作用. 使用安装媒体重新安装 Windows 11. 你的电脑无法启动,并且你未创建恢复驱动器. 使用安装介质还原电脑. 电脑无法启动,并且你已创建恢复驱动器
KB5034441: Windows Recovery Environment update for Windows 10, version ...
IMPORTANT This update is not needed and will not be offered if your Windows Recovery Environment (WinRE) meets any of the following conditions: If the WinRE recovery partition does not have sufficient free space.