I had to set up a time limit to one of the account on my Windows 7 PC. So i had created a standard user account and set up parental control for it. But i want the user to be able to install ANY software without the need for the administrator password. How do i give the standard user privilege to install software?
You can't. Admin privileges are required to write to the Program Files.
So unless the Programs are designed specifically to install to a different location and write registry keys only to non-restricted registry keys, then you are SOL.
Allowing a user to install applications that would normally require an admin password defeats the whole purpose of a user account. At install time, they can just go awol with the system.