Virtual PC is a program that runs on Windows based PCs and can mainly make a "fake" or virtual PC in real one. It opens window in which you can see and run various OS. This permits ot check software on various OS also as other diagnostic and troubleshooting aspects.

1. One aspect of Virtual PC is full-screen mode. When this mode is activated, will extend virtual PC part of program to take up whole PC screen, successfully hiding any proof of real OS on physical PC. As this can be good for expanding viewing region in Virtual PC, when it comes time to close program, you find that you cannot close full-screen mode and are stuck. In Virtual PC, full-screen mode is toggled on and off by keyboard shortcut only.

Shortcut involves pressing and holding allocated "home key" and then pushing "enter" key. Virtual PC creates home key the right-hand "alt" key. If you have not modified this setting at all, this will be home key, and by pushing that "alt" and "enter" key, you enable to close full screen mode. Though, if settings have modified, then it's possibly home key was again allocated to anything else.

To search what home key is, just start program user settings by go to "File" and choose "Preferences." There is region for keyboard shortcuts where you can see what home key is allocated to.