Open your registry and find the key below.
Under this key are three sub-keys: Application, Security and System. These subkeys represent each section of the event log. To restrict access to each section create a new DWORD value of 'RestrictGuestAccess' under each sub-key and set it to equal '1'. To restrict access to only certain sections, then only add the value to that specific key.
Restart Windows for change to take effect.
Key:[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\EventLog]
Value Name: RestrictGuestAccess
Data Type: REG_DWORD
Data:(0 = Guest Access, 1 = Restricted Access)
