How so? I've uninstalled it before with no issues. What did you experience?
computer slowed to 1/2 what it was.   I reinstalled it and it went back to being fast.   did that several times with same results.   caused me to have to reinstall windowsxp.   It wasn't a virus as when I checked there were others complaints about the same. 
If they are dishonest enough to steal virus signature who knows what else they will do to your system. 
semp