When I boot up This PC (My Computer) appears showing the contents of my data drive. How can I stop this? I am not sure which of the startup items is causing this minor but irritating problem. The computer automatically opens My Computer with a list of folders. I have just noticed that when it opens My Computer the folders which appear are in my K drive. The K drive is an external drive onto which I back up my data files. I assume that somewhere in the start up process there is a line which opens My Computer, but I can't find it in the list of start up programs. Attached is a list of my startup programs.