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.

Select the Windows Security app from the search results, go to Virus & threat protection, and under Virus & threat protection settings select Manage settings.

In the search box on the taskbar, type Manage BitLocker and then select it from the list of results. Or, select the Start button, and then under Windows System, select Control Panel.In Control Panel, select System and Security, and then under BitLocker Drive Encryption, select Manage BitLocker. Note: You'll only see this option if BitLocker is available for your device.

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.

Important: If your device is out of support, it is no longer receiving security updates from Microsoft and may become more vulnerable to security risks and viruses.Therefore, we strongly recommend that you update to the latest version of Windows. Each version of Windows is supported for 18 months.

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.

Note: If you forgot your account info and had to reset your security info, you must wait 60 days before closing your account.

If you try to add an IMAP account to Outlook, for example a Gmail account, Apple account, Yahoo account, or an account from your local ISP, and you're not prompted to enter your password, use the following steps to work around the problem.

Get to know common Windows keyboard shortcuts including copy, cut, paste, maximize a window, and more.

Windows Security provides built-in security options to help protect your device from malicious software attacks. To access the features described below, tap the Windows Start button, type windows security, select it from the results, and then select Device security.