How to Change Windows Product Key After Install

Do you need to change your product key so you can activate Windows Vista, Windows 7, Windows 8 or Windows 10? There are two methods that will help you easily change the product key and activate.

Method 1: Command Line Utility

You can use a great command line tool that will help you do this very quickly. Just follow these steps:

Here is the simple and easy way work on all windows editions include Windows 10, 8.1 and 7.

• Search for command prompt, right click and select run as administrator,
• Then Type slmgr.vbs /ipk <Input your product key here> and hit Enter.
• Once Windows 10 gets activated you will get “Installed Product Key XXXXXX successfully” message.

At the administrator command prompt, type in "slmgr.vbs -ipk "

slmgr.vbs -ipk 00000-00000-00000-00000-00000

To activate windows after changing the key, run "slmgr.vbs -ato"

Show Key Plus

OEM Key Finder

Change Windows 10 product key from Settings app

1. Press the Windows logo key + I keyboard shortcut.
2. Select Update & Security.
3. Move down to the Activation option.
4. Click Change product key.
5. Enter the 25-digit product key for the edition of Windows 10 you want, press Enter.
6. And click Next When the Activate Windows appears,

Method 2: using Slui.exe

Run Slui.EXE to enter your product key

1. Press the Windows logo key + R shortcut in order to evoke the Run app.
2. Once Run is up, type slui.exe 3 and click OK or hit the Enter key.
3. Then Enter your 25-digit product key and press Enter.
4. follow on screen instructions to change windows 10 product key.
5. Change product key from Use Control Panel

 

The easiest way to change your product key in Windows 8 and 7 is via Control Panel.

• Open your Start menu and locate Control Panel. Click on it.
• Click on System and security. Then select System.
• Click “Get more features with a new edition of Windows”.
• Select “I already have a product key”.
• Then enter your product key and click on Next.

Windows 10 Activation Errors

But what if you get Activation Error? Here follow the simple process to Reset your license status and then re-enter your product key.

1. Search for command prompt right click and select run as administrator
2. At the command prompt, type slmgr.vbs -rearm
3. Hit Enter on your keyboard
4. Exit the command prompt
5. Restart your computer
6. Enter the product key using the above instructions