Well I am using dual boot system With Windows 7 and Windows Vista on my laptop. Yesterday I was running Windows 7 and accessed the user profile of mine which was located in vista partition to get some files. Suddenly Windows 7 paused and prompted that it was accessing the targeted folder and after some time I was able to access the files. After some time I tried to access Internet Explorer through shortcut from the desktop. It simply prompted that there is no short cut. Well same thing happened for all the desktop shortcuts. I have immediately restarted the laptop and I have found that the background of the desktop turns to black and there was nothing on the start menu of the computer. Now please help me in this situation.