User`s guide

Setting Up a Virtual Machine 76
If you are not sure whether Parallels Tools are installed, you can easily check this. Start your
virtual machine and look at the status bar of its window: if the tip "Press Ctrl + Alt to
release the mouse and keyboard" appears in the status bar of the virtual machine's
window, this means that Parallels Tools are not installed. When Parallels Tools are installed,
you do not need to press any key to release the mouse and keyboard - they are released
automatically.