I have Norton Internet Security 2009. Last week I noticed that the system scan functions don't seem to work. Total items scanned remains at 0. It's as if the scan feature isn't working anymore. Plus Norton locks up when I try to exit the scan. I have already removed Norton entirely and reinstalled it with all the updates. I am still having the same problem. I have also tried running scans in safemode with no success. I have also, installed Malwarebyets Anti-Malware and SuperAntiSpyware programs. The scans using both of these products appear to complete but don't find any infected files. I'm not sure if I have a virus or not. Any help is appreciated.