How Win8 pinns arbitrary files to the Start screen

By default, Windows 8 can only fix files of a specific file type to the "Start" screen, then what if we want to fix any file to the "Start" screen?
Step 1: Br> Open Notepad, paste the contents into it, save it as a .reg type file, and run it.
Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT*shellpintostartscreen]
"MUIVerb"="@shell32.dll,-51201"
"NeverDefault"=""
" ;Description="@shell32.dll,-51202"
"MultiSelectModel"="Single"
[HKEY_CLASSES_ROOT*shellpintostartscreencommand]
"DelegateExecute"="{470C0EBD-5D73-4d58- 9CED-E91E22E23282}"
Step 2:
A warning window may pop up, we click “ is ”.

The item and value were successfully added to the registry, and we clicked “OK”.

Step 3:
Find any file, right click and select Pin to “Start” screen.

Then we saw the file I just fixed on the &Startquo;start” screen, then we can choose to click and open.

After how do we remove the fixed to "start” screen function? At this point we open Notepad, paste the following into it, save it as a .reg type file, and execute it.
Windows Registry Editor Version 5.00[-HKEY_CLASSES_ROOT*shellpintostartscreen]"MUIVerb"="@shell32.dll,-51201""NeverDefault"="""Description="@shell32.dll,- 51202""MultiSelectModel"="Single"[-HKEY_CLASSES_ROOT*shellpintostartscreencommand]"DelegateExecute"="{470C0EBD-5D73-4d58-9CED-E91E22E23282}"