Can't Activate Real Time Protection

Ok so I just got BitDefender on my windows vista 32 bit and For some reason Im having 2 problems, one that seems to be quite important. Real time protection will not start. When it tells me to fix all problems (and I click fix all) nothing happens. So I did what someone said and went to control panel>administrative tools>services> then was going to change bit defender threat scanner (which I was just assuming is the same thing as Real time protection) from manual to Automatic start, but when I try to change it I get an error that just says "access denied". Any advice as how to get access?


The other problem which doesnt bug me all that much is the "clean temporary internet files" option. When I try to run it it starts for about 3 seconds then says canceled by user. No I didnt double click it or anything stupid like that. Any advice. Thanks