Monwow.exe
(Symantec)
Part of Norton CleanSweep. This program monitors the installation of new software on your PC without it running in the background Smart Sweep is "toothless" and cannot be used.
Recommendation :
If you actively use Norton CleanSweep on your PC, you will need to leave this process alone. Only disable it if you are troubleshooting conflicts between CleanSweep and other software (disable it by turning "off" Smart Sweep in the configuration of CleanSweep, and then rebooting).