How to Restrict Active Desktop by registry editing

You can restrict the Active Desktop in your computer by doing some registry tweaking. The steps are provided below:
1. Click on start and sect run
2. On run window type regedit
Now the registry editor will be open and follow the path.
HKEY_CURRENT_USER\Software\Microsoft\Windows\Current Version\Policies\Explorer
Now create DWORD value NoActiveDesktop and set its value to 1. The active desktop will be disabled on your computer.