installing new program

[juliawith]

How do I temporarily disable security software to add NeatDesk software program?

 

[Raz0rEdge]

I presume you mean Gatekeeper. In which case, go to System Preferences and Security & Privacy. On the General tab, click on "Anywhere" for the option "Allow applications downloaded from:"

 

[vansmith]

You can right click it and select the open option. This will give you the opportunity to run it without disabling GateKeeper.