How about changing the quick scan feature to work like following:
1. It checks if there is any viruses in the folder and subfolders. It does not stop if a virus is found, instead it will scan the folders and files through.
2. Quick scan lists number of folders and files that had been scanned. Then it also reports how many infected files had been found, and if possible, also what virus(es) had been found.
3. After the quick scan is completed, if viruses had been found, the quick scanner recommends running the full A-V scanner. It also has a button which is coded to launch full A-V scanner. At this point user should be able to choose whether he/she wants to run A-V scan to the same folder that was quick scanned or a full system scan.
Before reading this thread, I also thought that the quick scan is also able to disinfect or delete all viruses in one pass, instead of stopping if one is found.