Is your windows7 showing 'window not geniue' ? Has your windows7 expired and you can no longer use wallpapers or is it warning you for activation? Download Wat remover and get all the listed problems above fixed. Download: http://www.dicekrib.heliohost.org/WAT_Remover.zip . After downloading the wat remover, xtract it with any zip utility of your choice and run the executable application u xtracted. Once its running click on 'remove wat' and water mark will be removed. The computer will restart after the process with your windows7 activated.