From CNET:
In our tests, we didn't find Startup Inspector for Windows' database of known applications very comprehensive, since it failed to detect several fairly common utilities we had installed
.. as opined, msconfig would do nearly as well.
Odds are the Wintools malware was removed, but a reference to it in the registry etc. remains.
The amount of malware facing a computer user these days is overwhelming, and educating yourself can require a huge effort
Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.