Sign in with Microsoft
Sign in or create an account.
Hello,
Select a different account.
You have multiple accounts
Choose the account you want to sign in with.
新电脑上的 Office 反复提示激活 - Microsoft 支持
在新电脑上安装 Office Standard 或 Office Professional Plus 的批量许可版本时,可能会在每次启动 Office 时看到一个提示屏幕,即“让我们开始吧”屏幕。出现这种情况可能是因为在新电脑上安装 Office 的批量许可版本之前未卸载预安装的 Office 版本。
Applies To: Office 2021, Office 2019, Office 2016, Office 2013
Product activation for Windows – online & support telephone numbers
If you have problems activating online or don't have an internet connection, you can activate by phone. Follow the “Activate using an Internet Connection” method below to attempt via the internet. Automated System & Live Support Advocate: To get the telephone number for activation support, follow the “Activate by Phone” method below ...
Internet Explorer 下载 - Microsoft 支持
Microsoft Edge 是 Microsoft 推荐的浏览器. Windows 8.1不再支持 Internet Explorer 11。 相反,我们建议切换到 Microsoft Edge。 Microsoft Edge 是为了给你带来最好的上网体验而建立的,让你在浏览网页时有更多自主性,并获得更多隐私保护。
Microsoft Teams (free) - Microsoft Support
Connect with friends, family, and coworkers in Teams. Stay organized and connected with friends, family, and coworkers all from one app. Get started
Applies To: Microsoft Teams, Microsoft Teams personal, Microsoft Teams small business
SUMIFS function - Microsoft Support
Problem. Description. 0 (Zero) is shown instead of the expected result. Make sure Criteria1,2 are in quotation marks if you are testing for text values, like a person's name.. The result is incorrect when Sum_range has TRUE or FALSE values.. TRUE and FALSE values for Sum_range are evaluated differently, which may cause unexpected results when they're added. ...
Applies To: Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016, Excel Web App
Receive Remote Assistance Support from Microsoft
Remote Assistance Support from Microsoft allows a Microsoft support professional in another location to view your computer screen and work on your computer over a secured connection.Protect yourself from tech support scams.
Office Help & Training
We would like to show you a description here but the site won’t allow us.
查找 Windows 产品密钥 - Microsoft 支持
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。
Applies To: Microsoft account dashboard
在 Microsoft Store 中更改所在国家或地区 - Microsoft 支持
我们建议仅当迁至新的国家或地区长期居住时才更改所在地。 这一点很重要,因为在一个区域中获取的项可能无法在另一个区域中工作。. 其中包括: Xbox Live Gold 和 Xbox Game Pass
将 Windows 电脑用作移动热点 - Microsoft 支持
通过 Wi-Fi 与其他设备共享 Internet 连接,将 Windows 电脑变成移动热点。 你可以共享 WLAN、以太网或手机网络数据连接。