. . . I would get rid of most of the programs you have and use Ccleaner and a good anti virus software. . . .
I agree. I'm thinking most of your "defense" is not designed as anti-virus software. Do some more research and find a good free or cheap anti-virus software. Avast, AVG, etc. I did switch from XP about a year ago, but I still use inexpensive anti-virus software (Webroot).
But, as you note, it is probably time for a new, supported, Operating System.