How to Activate Windows Without any Software for free

                        Here's what you have to do

• click start > cmd.exe

•  Now right click and run it as administrator
   
  1.  Now type " slmgr -rearm " and hit Enter

 

        2.Now a Screen Will Appear showing command completed successfully and a restart is required 

• 

You can do this method and get a grace period for three times and totally you will have 120 days of free windows usage without any product key