Click the Start button (Windows logo) at the bottom left of your screen.
Click Start , type cmd into the search box. how to change windows 7 product key
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion In the right pane, look for an entry named ProductId or DigitalProductId . However, Windows does not store the plain-text product key here (it’s encrypted). This method is actually used to clear a key so you can re-enter a new one. Click the Start button (Windows logo) at the
slmgr.vbs /ato Another pop-up will appear with a message like "Product activated successfully." Click OK . You may need to restart your computer for all changes to take effect. Method 3: Using the Registry Editor (Manual Change) Warning: Editing the registry incorrectly can damage your Windows installation. Only use this method if the other two fail, and always back up your registry first. However, Windows does not store the plain-text product
Click on the link that says Change product key (you may also see "Product key" or "Activation" depending on your system’s status).
slmgr.vbs /ipk XXXXX-XXXXX-XXXXX-XXXXX-XXXXX For example: