In Windows 10, action center is where you'll find your app notifications and quick actions—which give you quick access to commonly used settings and apps.

John (100 emails, 0 calls, 0 SMS) Mary (0 emails, 10 calls, 0 SMS) Tom (5 emails, 1 call, 1 SMS) Nancy (0 emails, 0 call, 5 SMS) Steve (1 email, 1 call, 1 SMS) All these 5 people will show up in the "Frequent" section, even though you haven’t called Mary or Nancy. Why are the icons different for different people?

Get Microsoft billing support. Find help with Microsoft Store purchases, subscriptions, refunds, payment options, and checking your order history.

Review the warranty terms, check your warranty status, and learn about the protection plans for your Microsoft device or accessory.

Import a text file by opening it in Excel. You can open a text file that you created in another program as an Excel workbook by using the Open command. Opening a text file in Excel does not change the format of the file — you can see this in the Excel title bar, where the name of the file retains the text file name extension (for example, .txt or .csv).

Training: Watch and learn how to use PowerPoint in Windows. Explore PowerPoint training guides, articles, and how-to videos.

Press and hold (or right-click) the file or folder, select (or point to) Send to, and then select Compressed (zipped) folder. A new zipped folder with the same name is created in the same location.

A virtual private network (VPN) connection on your Windows 10 PC can help provide a more secure connection and access to your company's network and the internet—for example, when you're working in a public location such as a coffee shop, library, or airport.

To activate Windows 10 using an internet connection: As Windows 10 will automatically activate if you are connected to the internet, you can confirm your activation status by selecting Start > Settings > Update & Security > Activation and looking under Windows.. If online activation fails, first try the activation troubleshooting in Activate Windows 10.

Try it! Keep track of everyone you communicate with by creating and editing contacts in Outlook for Windows. Once you’ve saved someone as a contact, you can type the first few letters of their name into an email, and Outlook for Windows will fill in their email address for you.