Please remove/delete all the tools I asked you to download, except AVG Anti Spyware and Ccleaner. Since AVG Anti Spyware is a trial version, the realtime guard and automatic update will stop functioning after the trial period. That is why we are not installing the guard so it will not interfere with the cleanup or the malware removal process. You can use AVG-AS as an on-demand scanner (recommended) but you will have to manually update the definition file each time you scan.
Ccleaner is also a useful tool to keep for cleaning your cookies and temp files on a regular basis.
Re-enable all the realtime scanners I may have asked you to disable.
Remember to hide your system files again, if I had asked you to unhide them.
Create a new System Restore point to prevent reinfection from old restore points.
Go to Start>Run and type sysdm.cpl. Press Enter
- Select the System Restore Tab
- Place a check in "Turn off System Restore on all drives"
- Click Apply
- next, uncheck the same checkbox.
- Click Apply
- Click OK
Windows XP System Restore Guide
Please read this page with lots of info and tips on how to prevent malware in the future.
And if you want to improve speed/system performance after malware removal, take a look in here.
If the sound situation is not improved after following the steps for improving your system performance, I would suggest that you post the problem at the Other Computer Problems forum as it doesn't seem to be malware related.
Happy and safe surfing!