When prompted, enter the product key. You can find the product key on the sticker on the CD case or other packaging. If you need help, see Find your Product Key for Office 2007.

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.

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Notes: If you don't see Go to Microsoft Store on the Activation page, contact your organization's support person.. If you made a substantial hardware changes to your device (such as replacing the motherboard) and you have a valid product key, try to activate Windows by phone.

Find help and how-to articles for Windows operating systems. Get support for Windows and learn about installation, updates, privacy, security and more.

Turn on Find my device. When you set up a new device, you can decide whether to turn on or turn off the Find my device setting. If you turned it off during setup and now want to turn it on, make sure your Windows device is connected to the internet, has enough battery power so it can send its location, and that you're signed in to the device using your Microsoft account.

When you open a destination workbook, and the source workbook is not open, you may be alerted by the Trust Bar to update the links. You can control whether the Trust Bar alerts you, and whether to update all links when the alert does not appear.

All Xbox digital codes are 25 characters long, include both numbers and letters, and are formatted in five blocks of five characters (xxxxx-xxxxx-xxxxx-xxxxx-xxxxx).

在“设备”设置中，选择“通过蓝牙发送或接收文件”。

Contact Microsoft Support. What's new. Surface Pro; Surface Laptop; Surface Laptop Studio 2