WINDOWS7 System programs are unable to install or run because of system security

Troubleshoot WINDOWS7 system programs that cannot be installed or run because of system security:

A, when you first double-click the "setup.exe" file that runs a program, the mouse pointer disappears after "a few turns".

b, then, run the program in a compatible way, but the software still doesn't respond, and when he right-clicks the program's properties, at the bottom of the property window, it finds that the program is locked by Windows 7. Windows 7 Prompts the file to come from another computer and is blocked by the system.

C, click the "Unlock" button, and then click "OK" button, you can unlock the program is locked out of Windows 7 program.

D, at this point, double-click the Setup.exe file again to run the program correctly.