查找 Windows 7 或 Windows 8.1 的产品密钥. 卸载或重新安装 Windows 7 或 Windows 8.1 时，通常需要产品密钥。. 通常，如果购买的是实物 Windows 拷贝，产品密钥应该在标签上或者在 Windows 随附包装盒中的卡上。. 如果 Windows 已预先安装在计算机上，产品密钥应显示在设备 ...

To sign out, go to Outlook.com. Select your account initials or account picture at the top corner of your Inbox. Select Sign out. Tips: If you don't see your picture at the top of screen, check to see if ad blocking is turned on. Sometimes this prevents the picture from showing. If you don't see see Profile or Account options, you can access ...

Windows Web. 如果有一个工作表，其中列包含数据，需要旋转才能按行重新排列它，请使用 “转置” 功能。. 使用它，可以快速将数据从列切换到行，反之亦然。. 例如，如果数据如下所示，则列标题为“销售区域”，左侧为“季度”：. “转置”功能重新排列表 ...

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Select Install apps. Follow the instructions in the browser to download the installer and start your installation. Tip. As your apps are installing you might see the User Account Control prompt pop up and ask Do you want to allow this app to make changes to your device? Select Yes. Close the installer window after it's finished.

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但是，你可以将默认搜索引擎更改为使用 OpenSearch 技术的任何站点。. 若要在 Microsoft Edge 中更改默认搜索引擎：. 使用要设置为默认值的搜索引擎在地址栏中执行搜索。. 依次选择“ 设置及更多 ” >“ 设置 ”。. 选择 隐私、搜索、服务 。. 向下滚动到“ 服务 ...

Available for iOS and Android devices. Outlook is our most full-featured email and calendar app, optimized for PCs and laptops. If you're a heavy email and calendar user, and you want all the advanced features and capabilities of email, such as scheduling and task management, rich formatting, or mailbox rules, Outlook is the best choice for you.

Windows 11 automatically downloads and installs updates to make sure your device is secure and up to date. This means you receive the latest fixes and security updates, helping your device run efficiently and stay protected. To check for updates manually, select Start > Settings > Windows Update . Check for updates.