Hi, I format my PC every one or two months as i use a lot of trial software, write my own code etc. I have genuine win XP OEM. This time when i wanted to activate it it said According to our records the number of times you can activate windows with this product key has been exceeded. Please enter a different product key and click retry. Now where will i get a new product key? i called their helpline and keyed in the numbers...still the response was "cannot be activated" now what do i do?