There are many applications in Windows that can be accessed using the Start menu while there are these admin applications that can only be accessed using the Run menu like the msconfig or the services. These are the backend applications using which we can make many admin changes in the system.
While using these admin services can fix and repair your system, using these can also worsen it. Also there are pages full of hacks and tweaks on internet which not everyone would want to be used on their machines. So if you also want to disable the Run or remove it from your Start menu, then here it is.
1. Open Run, type gpedit.msc to open the Local Group Policy Editor.
2. In the left area, navigate to User Configuration -> Administrative Templates -> Start Menu and Taskbar.
3. Now when you single click on this, in the right pane select the policy named as Remove Run Menu from Start Menu.
4. Double click on the policy, it will open a dialog box from where if you select the Enabled button, the Run menu will be disabled and removed from the system for every user of the Windows.
Note: This is useful for system administrators, as enabling it back might be difficult for you. To enable it back, visit the safe mode with the admin password and disable the same thing from there.