Activate Windows using a product key. A product key is a 25-character code, that looks like this: PRODUCT KEY: XXXXX-XXXXX-XXXXX-XXXXX-XXXXX. During installation, you'll be prompted to enter a product key. Or, after installation, to enter the product key, select the Start button, and then select Settings > System > Activation > Update product ...

列出所有可用的 Excel 函数. VLOOKUP 函数. IF 函数. 创建下拉列表. 将两个或更多个单元格的文本合并起来. 冻结窗格以锁定行和列. 创建数据透视表以分析工作表数据. 设计数据透视表的布局和格式. 在数据透视表或数据透视图中对数据进行排序.

添加验证 Microsoft 帐户登录的方法. 登录到 Microsoft 帐户的 “高级安全选项 ”页。. 登录. 选择“ 添加新的登录方式或验证 ”，然后选择接收安全代码的方式。. 注意: 无法添加 VOIP 号码作为登录或获取验证码的一种方式。. 我们会将安全代码发送到新号码或电子 ...

Safari. 打开 Safari，依次选择“Safari”>“首选项”，然后选择“常规”。. 在“主页”字段中，输入网页地址。. 若要使用正在浏览的网页，请选择“设为当前页”。. 选择何时显示主页。. 在新窗口中打开主页：选择“新窗口打开方式”弹出菜单，然后选择“主页 ...

In some editions of Windows 10, it's included as an optional feature that you can enable. To do that, select the Start button, then select Settings > Apps > Apps & features > Manage optional features > Add a feature > Windows Media Player, and select Install. Enable Windows Media Player. DVD playback isn't included.

Microsoft Edge 是 Microsoft 推荐的浏览器. 对 Internet Explorer 的支持已于 2022 年 6 月 15 日结束。. Internet Explorer 11 已通过某些版本的 Microsoft Edge 更新永久禁用Windows 10。. 如果访问的任何网站需要Internet Explorer 11，则可以在Microsoft Edge中使用Internet Explorer模式重新加载它 ...

如果遇到问题或想要向我们提供反馈，可通过三种方式与我们联系：. 通过主屏幕上的 “反馈” 快捷方式提交 bug。. 通过用户语音向我们发送反馈，或通过 microsoftlauncherfb@microsoft.com 向我们发送电子邮件，其中包含你的手机型号和你运行的 Android 版本。. 启动器 ...

Right click the network icon in the right side of the taskbar and select Diagnose network problems or open Get Help for Network & Internet. Make sure Wi‑Fi is turned on. Select the No internet icon on the right side of the taskbar, and make sure Wi-Fi is turned on. If it isn't, select it to turn it on. Also, make sure Airplane mode is turned off.

Change desktop background and colors. You can choose your desktop background or change the accent color for Start, the taskbar, and other items. Any time you want to, you can go to Settings to customize what displays for you. Select Start > Settings > Personalization. The preview window gives you a sneak peek of your changes as you make them.

Select the Start button, then select Settings > System > Power & battery > Battery usage. For an app that lets you manage the background activity, select More options (three vertical dots) > Manage background activity. On the settings page for that app, change the setting for Let this app run in the background. Here’s a summary of each option: