Some Registry Changes

Hide Run from Start Menu
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoRun = 1 (REG_DWORD)
Above statement means first locate My Computer then scroll down to HKEY_CURRENT_USER which contains the Key Software which in turn is having a key named Microsoft. Then scroll to Windows then to CurrentVersion and then expand policies. There you will find a Key Named Explorer.Single Click this key and select its Property Named NoRun (Create it, if it does not exist. Its Type is DWORD which is given in Brackets). Now Double Click it and Make its value 1 to enable this registry or it means to not display Run in start menu Make it 1 and if you want to display the Run in Start Menu then Make it as 0.

Above change will Hide Run from Start Menu, from Task Manager(generally Run is in file Menu of Task Manager), and moreover you can not Start the Run by pressing Win+R (Shortcut for Run). It means Run has been completely Disabled.
Some of the changes requires a system Restart while others work fine if a simple refresh is performed.

Enable-Disable A property

"1" in the value enables it and a "0" in the value disables the property.

Hide Find Option in Start Menu

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoFind = 1 (REG_DWORD)

Above registry Alteration will hide Search Command from Start Menu and other locations.

Force Classic Start Menu

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoSimpleStartMenu = 1 (REG_DWORD)

Generally you can change the look of Start Menu by right clicking the taskbar and then select Properties. Under Start Menu you can chose the type of start menu you require. But above registry Alteration will hide the Start Menu Option and only Classic Start Menu will be there.

Hide Find Option in Start Menu

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoFind = 1 (REG_DWORD)

Above registry Alteration will hide Search Command from Start Menu and other locations.