说明如何备份注册表，以便在Windows 10、Windows 8.1、Windows 8或 Windows 7 中损坏注册表时进行还原。 手动备份注册表 选择“ 开始 ”，在搜索框中键入 regedit.exe ，然后按 Enter。如果系统提示你输入管理员密码或进行确认，请键入密码或提供确认信息。

Tips: While signing in, select Yes at the "Stay signed in?" prompt if you want to go straight to your mailbox next time (not recommended for shared computers). Alternatively, check the "Don't show this again" box and select No to be prompted for your password each time.. If you can't sign in, or have forgotten your username or password, use our sign-in troubleshooter.

如果注册表包含 500 KB 以上的空数据块，Windows 注册表检查器会自动优化注册表。Windows 安装程序在执行升级之前会运行 Windows 注册表检查器工具以验证现有注册表的完整性。如果它检测到注册表被损坏，则会自动修复注册表。

Where can I find my BitLocker recovery key? BitLocker likely ensured that a recovery key was safely backed up prior to activating protection. There are several places that your recovery key may be, depending on the choice that was made when activating BitLocker:

Tips: While signing in, select Yes at the "Stay signed in?" prompt if you want to go straight to your mailbox next time (not recommended for shared computers). Alternatively, check the "Don't show this again" box and select No to be prompted for your password each time.. If you can't sign in, or have forgotten your username or password, use our sign-in troubleshooter.

Note: The Wireless Display app is available on devices running Windows 11 version 22H2 and newer.If you're running an earlier version of Windows, launch the Connect app by entering connect in the search box on the taskbar, and selecting Connect in the list of results. To find out which version of Windows you're running, see Which version of Windows operating system am I running?

了解如何在 Edge 浏览器中使用Microsoft 翻译工具来翻译网页。 ... 如果在设置中打开用与首选语言不同的语言编写的页面，Microsoft Edge会自动提示你翻译它。 转到用外语编写的网页时，“翻译”图标 显示在地址栏中。如果语言未包含在设置中的首选语言列表中，则该语言被视为外在语言。

The Microsoft Mouse and Keyboard Center is an app that helps you make the most out of your Microsoft keyboard and mouse. Mouse and Keyboard Center helps you personalize and customize how you work on your PC.

Step 2: Back up your folders. Windows Backup is an easy, single stop for all of your backup needs. Your free Microsoft account comes with 5 GB of OneDrive cloud storage (and more storage is available if you need it), and backing up your folders syncs the folders you specify to your OneDrive account, making them instantly accessible on all computers that you use with this Microsoft account.

如何在 Excel 中将两个或多个单元格中的文本或数据合并为一个单元格。 首先选择要合并的单元格。 使用逗号分隔要合并的单元格，使用引号添加空格、逗号或其他文本。