Prevent Users to Uninstall the apps from Windows 8

In Windows 8 by default you can uninstall any app from Windows 8 apps.
When you right click on app Uninstall options will come.so few ppl accidentently click it & uninstall the app.
so now I tell you How to get ride of it ust follow the steps
1.Open RUN (Press Window key+R)
2.type regedit to open Registry Editor.
3.Now Navigate to the following key

HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Explorer

4.Create the Explorer key under Windows
5.In Explorer you are going to create a new DWORD value named NoUninstallFromStart
6.Give the value as 1
7.Now Sign out & Sign in & check it.