ParetoLogic is a data recovery program. They also provide utility software, driver updates,
and an anti-virus program. From everything I've seen about ParetoLogic, it's programs are legitimate and should not be what's causing reinfection. http://www.paretologic.com/products/index.aspx
If, after uninstalling ParetoLogic, the following error shows up:
Error loading C:/ Program File/ Common Files/ Paretologic/UUS2/UUS.dll
The program was likely installed on your system at some point, then uninstalled. This isn't
malware, a virus, or any other bad thing.
It's probably trying
to run a scheduled update. To get rid of it, go to Control Panel.
Open up Scheduled Tasks.
Find the entry for ParetoLogic Registration and delete it. The scheduled task entry is not deleted when the program in uninstalled.
To delete, right click on the entry, then choose Delete.