Only takes a little time and reading too determine what each of your ‘Start Up’ items are and as a result if they can, should or should not be turned off.
In MSCONFIG place the mouse pointer on the small vertical bar directly after the word ‘Command’ on the header bar and drag it to the right to expose the full location address area.
Then read along each line to locate the ‘.exe.’ an example would be for the Quicktime player which would read ‘qttask.exe’
Open your browser and type just that into the search bar for a result on the associated process to which the .exe is registered too.
You will get any number of hits but I tend to use liutilites site as it normally comes up first and returns for this one as follows:
qttask.exe produced by Apple, installs a tray bar icon which links to the Apple QuickTime video streaming tool. This program is a non-essential system process, and is installed for ease of use.
From this you can easily see it is written by Apple and more importantly is NOT an essential system process so you can shut it down without causing a problem.
If you do this for all the entries, and I know it will take a little time, you will not only find out what processes you have running that start at boot and which yo can safely shut down, but also learn a little more about the way your computer works.
If you still have trouble with the list, type it up or take a screen shot and post it here and I am sure one of us will quickly let you know what’s what and how to proceed.
As for the Norton/Adaware scan, if done from the admin account both will scan the full hard drive…if done from a user account Norton will still scan the full hard drive I do know, but as for Adaware, it’s settings state it can scan the whole system just not certain it will from a limited account scan areas not normally accessible from that account, suggest an email to Adaware’s support might be the best way to get an answer on this one.