Restrict Users from Running Specific Applications

Start/Run/Regedit
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer.Value Name: DisallowRun
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion \Policies\Explorer] Create a new DWORD value and name it "DisallowRun" set the value to "1" to enable application restrictions or "0" to allow all applications to run.

Then create a new sub-key called [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\ Policies\Explorer\DisallowRun] and define the applications the are to be restricted. Creating a new string value for each application, named as consecutive numbers, and setting the value to the filename to be restriced (e.g. "regedit.exe"). Restart Windows for the changes to take effect