unable to start bonjour. when uninstalling get error message 32 bit needs 64

I had trouble loading apple control panel. kept getting error message at installation that the install is a 32 bit, requires a 64 bit version

I went to bonjour as instructed but could find 64 bit version.

I then uninstalled bonljour printer but the install for control panel was the same

I uninstalled bonjour printer, and found another bonjour that apparently was installed in 2011. When I tried to unistall that program, I got the same this installer is a 32 bit, requires a 64 bit. I am unable to unistall bonjour and still cannot install control panel this is on a dell inspiron tower.