I have to agree with lurkswithin. You are having too many issues to try and figure out. Also not all virus's can be removed. Some change system files that can not be changed back.
Most virus's goal is not to be annnoying but to use your computer. Either to send itself out to others and/or use your computer silently to attack others and/or to gather your passwords and logins or personal information. So each day you are trying to fix it, is another day it's being used against someone.

Good luck and be careful what you download from the internet or open in emails.