This is not necessary. Virus and spyware scanning includes real-time scanning, which means that your computer is scanned for viruses in real time. Our recommendation is to perform a scheduled scans every 1-2 weeks.
Note: Scanning for malware is an intensive process. It requires the full power of your computer and takes some time to complete. For this reason, you might want to set the program to scan your computer when you are not using it.