Learn how to activate Office pre-installed on new Windows 10 PCs or with a new product key.

无论是通过 Xbox 主机设备或还是仅通过计算机提供，这些数字游戏购买退款条款涵盖 Microsoft Store 的数字游戏优惠、Xbox 应用（不含电影和电视应用）、数字游戏捆绑优惠以及数字耐用和消费性游戏优惠，例如游戏季票、虚拟货币和微交易等（总称“数字游戏产品”）。

If you reference a Checkbox cell with a formula, TRUE or FALSE will be passed along to that formula. For example, if you have a Checkbox in cell A1, you can use a formula like =IF(A1, "Checked", "Unchecked") to display a custom message based on the Checkbox's state.

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

Which says IF(D2 is blank, then return "Blank", otherwise return "Not Blank").You could just as easily use your own formula for the "Not Blank" condition as well. In the next example we're using "" instead of ISBLANK.

You can manage all of your Microsoft subscriptions in your Microsoft account dashboard. Select each subscription to change when and how you pay, or to see order history & receipts.

Find your product key to activate Windows. A product key is a 25-character code that's used to activate Windows and helps verify that Windows hasn't been used on more PCs than the Microsoft Software License Terms allow.

Surface app. With integrated help and support, you can find solutions to questions and issues directly from the Surface app. You can easily access device, charging, and warranty information and view and customize your connected Surface accessories.

Get more information about managing your Xbox subscriptions, issues with billing, and more.

Windows Mail and Calendar apps. If you're using Windows Mail and Calendar and your accounts are supported in new Outlook, you will see a toggle in the upper right of the Mail app in Windows 10 and 11 to Try the new Outlook.. This option downloads the new app and switches your preferred email client.