system
4
Attach here screenshot avast message.
Download TDSSKiller and save it to your desktop
Execute [b]TDSSKiller.exe[/b] by doubleclicking on it.
[*] Press Start Scan
[*] If Suspicious object is detected, the default action will be Skip, click on Continue.
[*] If Malicious objects are found, select Cure.
Once complete, a log will be produced at the root drive which is typically C:\ ,for example, [b]C:\TDSSKiller.<version_date_time>log.txt[/b]
Please post the contents of that log in your next reply.