On my wife's laptop, updated from windows 7 , the windows logo, if the mouse is hovered over it, changes to a sand colour, not blue as it did at first. The same applies if I "personalise" the screen, when the bloc with "1" is sand, not blue. All but one tile in the start screen, when one left clicks on the windows icon , are sand, not blue. I did try Google, and only found one reference, whose issue disappeared . I am loathe to do a clean install, as I have programmes such as Photoshop CS5 that I do not want to loose. reference was to do with the user issue. I , so far have no "Microsoft account" and wonder if that is a cause. On closing down, if an update is installed, the whole screen goes to a sand colour while updating, but on launch the blue background is normal. Any suggestions?