Lithium-ion batteries wear out over time, which can result in a battery not holding a charge for as long as it did when it was new. Keeping the battery charged to 100% all the time can cause it to deteriorate faster.

How does multifactor authentication work? Let's say you're going to sign into your Microsoft account or work or school account, and you enter your username and password.If that's all you need then anybody who knows your username and password can sign in as you from anywhere in the world!

In Windows, having a camera and microphone as part of your device lets you make Teams video calls, take pictures, record videos, and more. Many apps and services request and use the camera or microphone, and Windows settings give you control over which apps can use your camera or microphone.

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.

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.

Alternatively, you can install any website by going to the top corner of the browser and select Settings and more … > Apps > Install this site as an app.

There are different ways to remove apps and programs, so if you can't find the one you're looking for, you can try another location. Note that some apps and programs are built into Windows and can't be uninstalled.

了解如何使用 Windows 上的 Game Bar 来捕获游戏过程、与好友聊天和跟踪成就。

Microsoft account help and support. Get help with signing in, locked or compromised accounts, linked accounts, closing, reopening, and updating your security info and account profile.

If you selected the Show icon on my profile check box but the icon still isn’t displaying, sign out of the device where you have the issue and then sign back in. On a PC, you may also be required to restart the app: Start Task Manager, choose the app that’s running (Game Bar or Xbox app), select End task, and then restart the app.