Learn how to find a Windows product key for activation, and when you'll use a digital license instead.

Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.

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.

In summary, a product key is used during installation, while an activation code is used to activate the software afterwards. Both are essential for ensuring a legitimate and functional software experience.

If your purchase of Office or Microsoft 365 came with a product key, you enter your product key on one of the websites listed below for your product. After you enter your key, you can download and install …

If you have a numeric keypad on your keyboard, you don't have to find one and copy and paste, you can just do it! Here's how: With the Alt key held down, press the four-digit code on the numeric keypad for …

Troubleshoot problems you might be having with your mouse or keyboard, or other wireless device in Windows.

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

Copilot key shortcuts Text editing shortcuts Desktop and other general shortcuts Windows key shortcuts Command prompt shortcuts Dialog box shortcuts File Explorer shortcuts Multiple desktop shortcuts …

Learn how to redeem a gift card, code, or Office product key and spend your balance at Microsoft Store online, on Windows, or Xbox.

The special keys on the top row of the keyboard or type cover double as function keys when you press the Fn key and then press a top-row function key. The function keys are used to perform specific tasks.