Welcome to DAL,
To clean your temp folder, recycle bin, etc..please download this free tool:
CCleaner
Don't install any Toolbars, or other programs, should it ask you!Just uncheck the option of installing the Yahoo toolbar.
It will put a shortcut on your Desktop.
Click on CCleaner to start it. Then click "Run Cleaner", just use the windows tab up front by default.
Then Reboot (Exit)
Run hijackthis and click on scan button and put checks next to these:
O9 - Extra button: Related - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O9 - Extra 'Tools' menuitem: Show &Related Links - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
Make sure nothing is open but hijackthis and click on fix checked.
You have AVG and Mcafee and not a good idea to have 2 anti-virus programs running at the same time so I suggest you uninstall one of them.
How is your computer behaving now after the above?