Those users who are used to using public computers (Internet cafe, school, work, university…), We will surely have noticed that certain tools or system functions have been disabled, to name a few; Task Manager, Launch Console, Folder Options, Registry Editor, Disk Drives. Obviously this is done in order to protect the system, from experienced users or not, who try to make any changes to the equipment by altering its correct operation.
Although this task is not very complicated, it is usually too time consuming and why not even tedious when having to apply each trick. In that sense to save time and if we do not have the knowledge, we have at our disposal to RegMod, One free program to disable Windows system tools. Which is synonymous with security, in the event that there are several users of our family or public computer (cybercafé).
RegMod does not need installation since it is a portable program, is only available in English but its mode of use is quite simple (intuitive), just select the option (s) that we need to execute and then with a click on Clean Registry the changes will have been made.
Here is a Spanish translation of the program options in a capture image:
Note.- For some functions to take effect, it is necessary to restart the equipment or, failing that, to close the session.
RegMod It is free, lightweight, only 132 Kb executable file, and is compatible with Windows, although the author has not defined which versions. An excellent utility that you should take into account 
Official site | Download RegMod (38KB – Zip)