I don't know anything about Rocket Tab, but as Google suggests, it's not the program that should be kept on one's PC.
So if you do not need it, you might try to uninstall it - e.g. using this
instruction (except point 1, where you are suggested to install anti-malware program).
I don't know whether it would help, but from my point of view this should be a good thing to start with.