How to change the key in Win7 system?

        Under normal circumstances, most of the win7 systems we use are "pseudo-activated". After using 180, we need to reactivate. Recently, users have encountered such problems. Seeing that the activation code is about to expire, I have found a lot of activation codes from the Internet, but I don’t know how to modify them. What should I do? The following small series will share with you how to change the Win7 system activation key. Method 1: 1. Press the “Win+R” key combination to open the run. Enter: cmd in the box and click OK to open the command prompt.
2. In the command prompt, type: slmgr /ipk KH2J9-PC326- T44D4-39H6V-TVPBY Press the Enter key (KH2J9 starts with the activation key, which can be modified to the key you found). The pop-up is installed and the product key is installed.
Method 2: 1. Right click on the desktop and click “New” - “Text Document”; 2. Open the document and enter: slmgr /ipk XXXXX-XXXXX-XXXXX-XXXXX-XXXXX (X is changed to confidential) Key);
3, click "File" - "Save As", change the save type to "All Files", change the file name to: [Change Key.bat] Click "Save";
4 Right-click "Change Key" and select "Run as Administrator" to change the key. The above is the method of replacing the secret key in win7 system. If you need to change the key when using Win7 system, you may try the method described in Xiaobian.