System Administrator has Disabled the Option to Install Software

I am trying to install a new software on my computer but it always shows an error. No matter what software I tried to install, it always failed. I don't know how to get rid of it. I tried installing the same software on another computer and it works so I am sure that the problem is on my computer. How can I fix it?
The error is:

Warning!
Your system administrator has disabled the option to install any software on this computer per company policy.
