Invisible IE Pop ups and wave audio volume control auto resets to low.

You have multiple AV software on your system. There are a lot of leftovers of Avira as well as your having Norton in your add/remove programs list..

You need to run these scans:
SAS
MBAM
ComboFix

Attach those logs in your next reply.

Please also re-run MBRCheck and attach that log.

Please use add/remove programs to uninstall:
J2SE Runtime Environment 5.0 Update 3
Norton AntiVirus SYMLT MSI
Norton AntiVirus

Now use windows explorer to find and delete:
C:\Documents and Settings\All Users\Desktop\avast! Free Antivirus.lnk
C:\WINDOWS\Temp\100.dat
C:\WINDOWS\Tasks\AE8C29869073A57E.job
C:\Program Files\Alwil Software\Avast5

Then run the C:\MGtools\GetLogs.bat file by double clicking on it (Note: if using Vista, don't double click, use right click and select Run As Administrator).

Then attach the below logs:
* SAS and MBAM logs.
* C:\ComboFix.txt
* C:\MGlogs.zip
* NBRCheck log
Make sure you tell me how things are working now!

You need to double ( at a minimum ) the amount of RAM you have installed:

Code:

Total Physical Memory    512.00 MB    
Available Physical Memory    92.90 MB