hello! Some time ago by accident I updated something called "Windows Genuine Advantage Validation tool". The problem is - all my desktop is black and in the right corner there is a logo of this "i-don't-know-what", every time I start my computer there always are some notifications of it, so - all I want is to get rid of all that. I tried to delete that file from folder C:\WINDOWS\Downloaded Program Files , but when I pushed 'cancel' it said error - failed, etc. So, maybe someone could help me? Please!