To activate Windows 7, usually we use the loader from DAZ (Windows Loader). If you use windows loader, actually safe, but sometimes it can be blacklisted by microsoft. but now you can get the serial number to full activation, only on this site.
Windows 7 Pro & Enterprise Serial Number Activation
File Size : 1.7 MB
Type : RAR
Note : This serial can only be used for Windows 7 Professional and Enterprise versions