Extract it and then install it on your PC.Once downloaded you will see Windows 7 Loader in a zip folder.First of all, you need to click on the Download Windows 7 Loader button.If you are still using the Windows 7 OS unregistered version then follow the below steps to activate Win 7 using loader without a product key.
How To Install and Use Windows 7 Loader 2.2.2 on a PC? This loader activator replaces the trial copy with the original copy without the product key. You can download Win 7 loader activator v2.2.2 which is compatible with all 32-bit and 64-bit versions respectively. It will automatically detect your Windows version and its architecture.
Windows 7 loader by Daz is free to download for all Win 7 versions.