I have system that working nicely but I have only one problem that I can’t fix it as per my requirement. I am using ACER laptop, that has Windows 7 operating system ultimate, has a processor of AMD ATHLON @2.6GHz, 4GB DDR3 RAM, 160GB hard drive. When I am gonna change the wallpaper in background, system show me some error message that say something about that I can’t upload this images on the desktop. Do you have ideas why this error thrown by the system? Sometime it allow me to upload that images but nothing happen means images not upload as I want. I can’t even drag any images sometime means not allowed by the system, don’t know I am so confused. Is there is anybody that has some information about this type of problem, please gives it to me, I need to know that what the hell is happening to my system, is there is any virus that not allow me to perform this task. Any suggestion would be greatly appreciated.