sorry,I can't fully get you,Umar? If you thinking to run MS Office 2010 in your PC you should have minimum Windows XP Service Pack 3,listen carefully so far I know it does not work in Windows xp sp2 or old versions,it only works in windows 7,vista and xp sp3..(I don't know about Mac)..And as jbakerlent says MS Office is not free and always "Say No to Piracy",if you really want to use that buy it.