Task manager

Disabling task manager in OSIf you want to disable your task manager for your security purposes open Registry editor
Go To start - Run  - type Regedit then go to the following key in registry
Hkey_Current_User / Software / Microsoft / Windows / Curre Ntversion / Policies / System
Double click on DisableTaskMgr  and change the value to 1.
If it infected already by some virus you can unable it with changing the value to 0.