I keep getting this message every time I turn my computer on "A Rootkit was found, then it show the following: c:\windows\system32\cwsbda.sys although the words are so close I can't decide if it's cwstxla.sys. It also states the following: Type: Hidden Services
Malware Name: Win32:Qandr(Rtk). I have gone into my C drive trying to locate this file and can't seem to. I have the Avast AntiVirus system and it can't seem to delete this file. Can you please give me any suggestions? Thank you

For rootkits the easiest way to remove them would be to try Combofix (found here http://majorgeeks.com/Combofix_d6402.html) or Hijackthis (found here http://free.antivirus.com/hijackthis/) Both are free and they specialize in removing rootkits.