Learn what to do if you receive a message in Mail or Calendar for Windows 10 that your account settings are out of date.

Learn how to check for, download, and install KB 2919355, an update for Windows 8.1 and Windows RT 8.1.

学习如何在 Windows 中解决 USB-C 问题，修复 USB 设备、端口和适配器无法正常工作。

Find out how the Windows location service works and how to change the location privacy settings.

Microsoft's products and services work best if you use the same language and region across all your devices, and in all of your app and Store settings.

Linking to other workbooks is a very common task in Excel, but sometimes you might find yourself with a workbook that has links you can’t find even though Excel tells you they exist.

Under Personalization & advertising, turn on or off the setting for Allow Microsoft to save your browsing activity including history, usage, favorites, web content, and other browsing data to personalize Microsoft Edge and Microsoft services like ads, search, shopping and news.

Learn more about how to print web pages and documents in Microsoft Edge.

Learn how to use Microsoft Edge for mobile devices, sync your browser data, and get answers to common questions.

Play MP4 files in Windows 10 by right-clicking the file and choosing what application to open it with.