Have you opened Windows Explorer, and traversed the directory to the folder locations of the app you wish to run, and clicked on the exe file?
Your shortcuts might be messed up, and the only way you can run any apps would be directly clicking on the programs exe file.
You could then navigate to your spyhunter folder, and see if running it's binary works this way inplace of clicking on its desktop shorcut.
You could do a re-association for each file, this might take a long time though.
Open Windows Explorer, then click TOOLS, Folder Options, File Types. You can now see what each file is associated with. You can edit the programs which open which programs.
Its also possible you have a worm on the system, which has re assigned all shortcuts to the KMD. But I am not certain on this, never heard of that worm, but I've seen some worms which do mess with the shortcuts.
Did you get the recovery CD with the laptop? Maybe you will want to do a reinstallation of the OS.