The problem has been solved by "re-installing norton internet security (NIS)".
Everything above could not solve my problem.
Very weird.
Background story:
I did originally use the NIS.
After the NIS was upgrade into a new version, there were too many false positives so that I changed into the extended trial of a bitdefender IS.
I could not perform windows update and java update after the changing.
I think that it is because of the bitdefender.
So, I changed into kaspersky IS after removing bitdefender using the remover.
Still I could not implement windows updates.
I re-installed my NIS, and I can succeed windows updates.
p.s.
I am of norton bondage until I install new OS to my computer.