But after sometime system will ask for windows activation key, If you will not activate your windows, you can not access properly your work on your desktop/laptop. in this case you have to purchase product key for activate your windows.
But Do Know that you can activate Windows with purchasing any Product key...?
Yes you Can activate your windows free of cost, Just Download a Software (don't worry, I'll provide link for download software) and follow steps.
Watch Video Here:-
Extract Downloaded Software.
Open "KMSAuto Net 2015 v1.4.2 Portable"
Open "KMSAuto Net"
Software will Open, Click on "Activate" wait for few seconds. and your windows will Activate.
Download File Hगere