If you receive a phone call claiming to be from Microsoft, or see a pop-up window on your PC with a fake warning message and a phone number to call and get your “issue” fixed, it’s better to be safe and not click any links or provide any personal information.

Select Start > Settings > Windows Update > Check for updates and then install any available updates. If the problems aren't all resolved, try running the troubleshooter again to check for additional errors, or see Fix Windows Update errors and follow the troubleshooting steps.

Select the product you need help with. We'll show you self-help options first. Additional help is available if you need it, including live chat with a Microsoft specialist. Microsoft 365. Office. Windows. Xbox. Surface devices. Copilot.

使用 Microsoft Rewards 赢得积分. 做日常所做的事，即可赢得奖励积分。. 这很简单，而且免费。. 只需注册即可将 Microsoft Rewards 包含在 Microsoft 帐户中：. Microsoft Rewards. 注册后，登录到 Microsoft 帐户可查看当前积分。. 在 Bing.com 上，还可在帐户名称旁看到总积分。.

Locate your product key for Windows 10 or Windows 11. Depending on how you got your copy of Windows 10 or Windows 11, you'll need either a 25-character product key or a digital license to activate it.

Our latest evolution brings a new name to unify the experience for all our users. With that, we're introducing Microsoft Phone Link as the PC app experience, and Link to Windows as our mobile app for Android devices.

In Word, you can create a form that others can fill out and save or print. To do this, you will start with baseline content in a document, potentially via a form template. Then you can add content controls for elements such as check boxes, text boxes, date pickers, and drop-down lists.

其实用查找函数很容易做到。. VLOOKUP 和 HLOOKUP 函数，以及 INDEX 和 MATCH 是 Excel 中一些最有用的函数。. 注意: Excel 中不再提供“查找向导”功能。. 下面是如何使用 VLOOKUP 的示例。. =VLOOKUP (B2,C2:E7,3,TRUE) 在此示例中，B2 是第一个 参数 ，即函数运行所需的数据元素 ...

什麼是來電者身分識別，以及如何在 Skype 中設定？. 來電顯示 讓您的朋友、家人和商務連絡人知道是您打電話給他們，或傳送簡訊。. 當您設定來電者身分識別時，您的行動電話號碼或 Skype 號碼 當您從 Skype 撥打行動電話和有線電話時，就會顯示。. 來電顯示是 ...

如果要筛选的数据需要复杂条件（例如类型 = "农产品" 或销售人员 = "李小明"），可使用" 高级筛选 "对话框。. 若要打开 " 的高级筛选 " 对话框，请单击 " 数据 "> 高级 "。. 高级筛选. 示例. 高级筛选条件概述. 一列中有多个条件，任何条件为真. 销售人员 = "赵强 ...