04-12-2011 08:28 PM
04-12-2011 08:36 PM
In the details of the File Insight report, was the file from Symantec? The poor rating was most likely due to the relatively small number of Norton users with this file (assuming the file is only in N360v5). You should restore the file IF it is part of N360.
04-13-2011 12:31 PM
Can you restart the computer in Safe Mode and then run a Full System Scan?
Let us know the results. When the computer runs slow, check the Task Manager for the process which consumes more CPU usage and memory.