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.

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.

Battery Life: Lowering your refresh rate can save battery power by reducing the amount of energy your display consumes.This can be useful when you are using a laptop or tablet and want to extend your battery life.

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.

Free. A Free badge means an active Microsoft 365 Family or Personal subscription isn't associated with the account you signed in with. Only the free web versions of Word, Excel, and PowerPoint are available to you. To access these apps in your browser, all you need to do is to sign in to Microsoft365.com with your Microsoft account and select the app you need from the app launcher .

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

To pin apps to the taskbar. Select Start , select the arrow next to All apps, right-click the app, then select More > Pin to taskbar.

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.

When you get a new device and start up Windows 10 for the first time, the antivirus protection that comes installed with the device is your default security app.

To Insert this. Say this ' 撇 號 . 上 標 點 . 略 縮 號 -減 號 . 連 字 號 ！ 感 歎 號 . 驚 嘆 號 # 井 字 號 $ 美 元 符 號 % 百 分 號