I've got my Acer laptop installed windows xp Pro SP2 but this version is not licensed (I used keygen to crack it). So it's impossible to update online. The problem is that I really want mine to be updated (I tried Autopatcher but then found my PC cracked down).
Could you please show me how to get my PC updated online by changing the key or something. I tried myself thousands of times but failed.

http://images.thetechguide.com/forum/public/style_emoticons/<#EMO_DIR#>/sad.gif\' class=\'bbc_emoticon\' alt=\'

\' />

http://images.thetechguide.com/forum/public/style_emoticons/<#EMO_DIR#>/sad.gif\' class=\'bbc_emoticon\' alt=\'

\' /> . Please help!!!!