If your experience level is limited, and you are unsure what to remove etc. then a clean install may be the best option for you, especially with this thread you started here:

http://www.antionline.com/showthread...hreadid=257477

in mind. You should use a new password too.

You would need to back up any data you wished to keep of course.

If you decide to go down that route then I would suggest reading these tutorials before starting.

http://www.antionline.com/showthread...hreadid=255353
http://www.antionline.com/showthread...hreadid=255443