InfoStealer & PUA Programs

Hello and thank you in advanced to those willing to help me with my issue, I own an Asus X75A 
Processor: Intel(R) Core(TM) i5-3230M CPU @ 2.60GHz 2.60GHz
System type: 64-bit Operating System, x64-based processor
Windows 8.1
8.00 GB RAM

 

And have security issues with the programs: PUA.SearchProtect, PUA.Downloader Trojan.Zbot and a couponsupport.exe, Oh! and a Keygen :( 

 

And Norton only has them as quarantined, or even exluded, it won't allow me to remove them and if I do (which i have with a few) I end up just seeing them again 

what should I do?