转到“付款和账单”，并选择“支付选项”。 在“付款方式”下面，可以选择“添加新的付款方式”、“查看或编辑信用卡”，或“删除信用卡”。 输入更新的信息，然后选择“保存”。除非你看到更多提示，否则你已完成操作。 如果这不起作用，请联系你的银行或付款提供商，以验证你的付款 ...

Locking your Windows device allows you to quickly secure your device while keeping your applications and files open in the background. When you lock your device, anyone trying to access it must enter your password, PIN, or use biometric authentication if you have Windows Hello set up.

With PowerPoint for the web you create presentations right in your browser. Create and save your presentations in your OneDrive, and edit and share them online.

To return to browsing without Internet Explorer mode, you can click Leave on the information bar at the top of the screen, or close your current tab and open a new tab in Microsoft Edge.

Try it! Universal search. Select Search on the taskbar or press Windows logo key + S, then type what you want to find.You'll get personalized search results for people, email, and files in local and shared sites, or from the web. Desktop groups

If you can't sign into your Microsoft account, most issues can be identified by our sign-in helper tool. The tool will ask you to enter the email address or mobile phone number you're trying to sign in with and check the details you provide.

If you have Office 2007, Skype for Business 2016 won't be fully integrated with your Office programs. For example, you won't see the presence of your co-workers when you type an email in Outlook (by "presence" I mean you won't see whether they're available, busy, or away), and you won't have a few other features.

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Introducing Microsoft Phone Link Our evolution of the former Your Phone app brings a new name to the user experience. With the new Phone Link on your Windows PC and the new Link to Windows app on your Android device, accessing your mobile apps and content has never been easier!

Download our Formulas tutorial workbook. We've put together a Get started with Formulas workbook that you can download. If you’re new to Excel, or even if you have some experience with it, you can walk through Excel’s most common formulas in this tour.