The best way to ensure that your computer is clean is to post a request in the HijackThis log forum.
to download HijackThis.
Save HJTInstall.exe to your Desktop.
Double click on the HJTInstall.exe
icon to start the program.
By default it will install to C:\Program Files\Trend Micro\HijackThis
After the final dialogue box it will launch HijackThis.
Click on the scan
button. It will scan and then ask you to save the log.
Save the log, and post it into the Hijacthis forum.
The members there are busy, so it may take a while for them to reply to you. Also, in the title, you could put something like "Quick little request to ensure my log is clean".