Enable Registry Editor disabled by Admin

What is Registry ?
Windows registry is hierarchical database that stores
configuration setting and option on microsoft windows operating
system.It contains settings for low level operating system component
as well as applications running on windows.
Registry is also called as Brain of Windows which store all
information in form of registry keys Technically known as DWORD or
STRING or BINARY or MULTI_STRING values which stores data.

How to enable Registry Editor disabled by Admin ?
1. Open Notepad and copy below codes.

REGEDIT4
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System]
"DisableRegistryTools"=dword:00000000

2. Now save the file as anything.reg (.reg is must)
3. Double click the save file.
4. Done !!