Now for your security programs:
You can remove HiJackThis, you don't need this anymore. It should be used only when requested by a forum helper. It is not generally considered a clean up/fixer program but a scanner/investigative program really, though certain fixes of course are done with it when instructed to do so. Random use and removal without instruction can lead to damage to the computer if you really don't know for sure what you are fixing so it is always advisable to remove it once clean-up is complete.

As I told you I use Antivir and I see you've installed it also. I really like it a lot. It does auto update which I like, even though it has that annoying pop-up add for their paid version whenever it updates you just "X" it out. You have to run scans manually but if you make it a habit to run all these scans on a specific day and time then you will think nothing of it AND keep your computer running cleanly and smoothly.

ATF-Cleaner is a great cleanup program to keep, gets rid of the temp files and cookies, etc.

CCleaner is also a good one, does a bit more than ATF. You can keep it if you wish but only use the default settings. I have both on my system but ATF is the one I use on a regular basis.

Spybot Search and Destroy is excellent and one to keep but DO NOT use the TeaTimer portion of the program. It can interfere with fixes/removals done by HiJackThis for sure and quite possibly other programs like an anti-virus scanner or anti-malware scanner. But it does an excellent job of removing adware and spyware. Keep it updated and use it at least weekly and have it remove/quarantine what ever it finds.

MBA-M is the top of the line right now. As you have seen it removes lots of nasty items. It shouldn't run at start up, but should be used for scanning at least once a week, maybe more often depending on your surfing habits. Always update it before each scan. This program often has updates daily, sometimes twice a day, so always be sure it is updated before you scan with it. Unless you suspect something really bad on the computer the Quick Scan is usually sufficient for weekly scans. If you do one of these and a lot is found then it might be prudent to run another Full System scan immediately just to be safe, but Quick Scan usually does the trick.

Adaware...well I used to use it, don't anymore. Just found with this new version it wasn't as up to date as the others and I just don't like something that installs itself as a service without my ok. So I have removed it. Not a bad program but the others do as well or better and this is why I don't use it anymore. But if you choose to keep it fine, if not Uninstall it via Add/Remove

The one I would add is SpywareBlaster from Javacool. Frankly I wouldn't run a computer without it. It will protect your computer against spyware, adware, browser hijackers, and dialers and to quote from their website

Download it, install it, update it, enable all, INCLUDING it's Restricted Sites protection and close the program. It DOES NOT run in the background. Check for updates once a week, install them if they are available, enable the new protection and close the program again. That's it.

Hope I have answered your questions concerning the security programs. All of the above are FREE and really very simple to use. You should do fine with all of them. With all of them, when one of the scans finds something have it fix/remove or quarantine whatever is found. Keep that quarantine file for a week or so, if all seems ok, you can delete them.
Anything else?
Judy