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Find your Windows product key - Microsoft Support
If you upgraded to Windows 10 for free from Windows 7 or Windows 8.1, you should have a digital license instead of a product key. Microsoft Store App If you bought Windows 10 or Windows 11 Pro upgrade in the Microsoft Store app, you'll receive a digital license instead of a product key in the confirmation email that was sent to confirm the ...
适用于: Microsoft 帐户仪表板
Windows 10 Update Assistant - Microsoft Support
This troubleshooter assists customers whose machines are not yet updated to the latest release, Windows 10 Version 1607. This update will initially be released only to a small set of targeted customers. This set will expand over time. Windows users can start the assistant from this article.
DirectX - Microsoft
DirectX 9.0c 通过安装 DirectX 9.0c 最终用户运行时适用于 Windows XP 和 Windows Server 2003。 某些应用程序和游戏需要 DirectX 9。 但是,你的计算机包含更新版本的 DirectX。 如果安装并运行需要 DirectX 9 的应用程序或游戏,你可能会收到错误消息“无法启动 ...
使 SUM - Microsoft
可以使用 简单的公式对) 一组单元格 (区域中的数字求和,但在处理多个数字时 ,SUM 函数 更易于使用。 例如,=SUM (A2:A6) 出现键入错误的可能性小于 =A2+A3+A4+A5+A6。 下面是使用两个单元格区域的公式: =SUM (A2:A4,C2:C3) 对区域 A2:A4 和 C2:C3 中的数字求和。
适用于: Microsoft 365 专属 Excel, Excel 网页版, Excel 2021, Excel 2019, Excel 2016
Use the System File Checker tool to repair missing or corrupted system ...
Swipe in from the right edge of the screen, and then tap Search.Or, if you are using a mouse, point to the lower-right corner of the screen, and then click Search.Type Command Prompt in the Search box, right-click Command Prompt, and then click Run as administrator.If you are prompted for an administrator password or for a confirmation, type the password, or click Allow.
Microsoft Edge - Microsoft
按此键 执行此操作 Ctrl + Shift + B 显示或隐藏收藏夹栏 Alt + Shift + B 将焦点放在收藏夹栏中的第一项上 Ctrl + D 将当前选项卡另存为收藏夹 Ctrl + Shift + D 在新文件夹中将所有打开的标签页另存为收藏夹
KB5034441 Windows 10 21H2 22H2 ...
先决条件 电脑在恢复分区中必须有 250 MB 的可用空间才能成功应用此更新。 重启信息 应用此更新后,无需重启设备。 验证此更新的安装 若要验证此更新的安装,请使用 DISM /Get-Packages 确保 WinRE 上存在安全 OS 动态更新程序包。 有关详细信息,请参阅 检查 WinRE 映像版本。
Install Quick Assist - Microsoft Support
To pin Quick Assist to your taskbar so you can quickly get back to it, after Quick Assist is open, right-click (or press and hold) the icon on your taskbar > Pin to taskbar. If the old app icon still appears on your device, make sure you select the new app icon.
Windows - Microsoft
如果上述步骤都不能修复你的蓝牙问题,请使用 Windows 反馈中心报告错误。 这可帮助 Microsoft 确定此问题的根本原因。 请提供发生问题时你正在执行的操作或采取的具体步骤的详细信息。
Fix Bluetooth problems in Windows - Microsoft Support
Bluetooth doesn't work after you upgrade to Windows 10 from Windows 8.1 or Windows 7. Bluetooth doesn't appear in Device Manager, and there are no unknown devices listed. To get started, select a heading to see more info.