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Answers to questions on finding, getting, and applying product keys.

Firewall & network protection in Windows Security lets you view the status of Microsoft Defender Firewall and see what networks your device is connected to.

Set the font, tab leader, page numbers, and alignment for your document's table of contents.

Find out how to use the Xbox app to install and play PC games on your Windows device, chat with friends, and play Xbox console games remotely or from the cloud.

Learn how to add an app to run automatically at startup. Select the Start button and scroll to find the app you want to run at startup.

Update Microsoft Store. Select Start, then from the apps list, select Microsoft Store.In Microsoft Store, select Library > Get updates.If an update for Microsoft Store is available, it will start installing automatically.

To see where your browser is saving downloads, look in your browser's settings. For example, in the new Microsoft Edge , select Settings and more > Settings > Downloads .The file path for your downloaded files (for example, C:\Users\[your name]\Downloads) is listed under Location.. In Microsoft Edge Legacy , select Settings and more > Settings .

Here are some answers to the frequently asked questions about the OneDrive desktop app for Windows.

使用 vlookup、hlookup 和其他函数（如 index 和 match）根据您输入的值搜索和查找数据。 本文将让您快速回顾 vlookup，然后链接到更多内容。