To uninstall Parallels Tools in all Windows guest operating systems except Windows NT, you should activate the same wizard as when installing. Do the following:
Do you want to completely remove the selected application and all of its components?
" Click Yes to begin the process. Do you want to restart your computer now?
". Click Yes. When the virtual machine is restarted once more, the tools are completely uninstalled. Note: After uninstalling Parallels Tools and restarting the virtual machine, the guest operating system may display a warning that it should be restarted once more. In this case restart the guest operating system one more time to ensure its correct functioning.
Uninstalling Tools in Windows NT
In Windows NT Parallels Tools can be uninstalled using standard operating system techniques.