EG Free Antivirus 2018
System Tools Block/Unblock:
A system tool is a process, program, utility, or another part of a computer's operating system that helps to manage different areas of the computer. For Example: Command Prompt, Task Manager, Registry Editor, Group Policy Editor, Services etc.
Because many tasks may be done with the help of these tools, so sometime it may be useful to block these tools to stop unwanted tasks. At the time of needs, we can unblock these tools back.
Here we can block/unblock following tools: