Windows 7 Developer : Microsoft
Activate Tool State : WORKING
please report in comments if it's not working anymore!
Tool Creator :

Tool Size : 1.33 KB

* Windows update must be enabled at the time of activation.
* Internet connection is required for instant activation, but
if you're running it offline then system will auto activate 
at next online contact.
1. Run the Script.bat
2. Booom! Windows 7 is Activated now!
3. you will get a message like 'Do you want to restart your PC now?'
Just type [Y] to Restart your PC.
4. Enjoy!