Learn how to tell if your Office software is genuine. To help determine if your Microsoft software is genuine, go to our How to Tell site for more information. Here you'll learn about authentic packaging, including what to look for with product key labels, and Certificate of Authenticity (COA), how to report counterfeit software, and find out what your shopping and licensing options are.

Learn how to identify a phishing scam, designed to steal money via fake emails.

Learn how to change the email address or phone number that’s associated with your Microsoft account.

Windows 11, version 21H2; July 9, 2024—KB5040431 (OS Build 22000.3079) June 11, 2024—KB5039213 (OS Build 22000.3019) May 14, 2024—KB5037770 (OS Build 22000.2960)

Learn how to use OneDrive Files On-Demand to sync your OneDrive files and save disk space in Windows 10.

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。

Smart App Control is a feature of Windows 11 that helps to block malicious, untrusted, or potentially unwanted apps from running on your device.

Create a channel in Microsoft Teams by selecting Create channel from the menu next to the channel name.

Learn how to check if your PC is capable of running TPM 2.0 or how to enable TPM 2.0 to upgrade to Windows 11.

Learn how to use eye control in Windows to type with an on-screen keyboard, communicate with people, and control the mouse with your eyes.