Trojan-Downloader.Win32.Agent.aii

[Clumsy]

Hello!
I have my computer infected with a  Trojan-Downloader.Win32.Agent.aii and my anti-virus avast home can´t delete it. What can i do?

:\Documents and Settings\Utilizador\Definições locais\Temp\setup.exe  Infected: Trojan-Downloader.Win32.Agent.aii 

C:\System Volume Information\_restore{E27AFB7D-4401-4911-9252-857261B13D61}\RP106\A0012251.exe  Infected: Trojan-Downloader.Win32.Agent.aii 

I have this two parts infected, please help me!
Thank you

Ps. sorry if the part of my computer are in portuguese.

[Lisandro]

If a virus is replicant (coming and coming again) or you can't delete it (file in use), you should:

1) Enable/Disable System restore on Windows ME or Windows XP. System Restore cannot be disabled on Windows 9x and it's not available in Windows 2k.

2) Clean your temporary files. You can use the Windows Advanced Care features for that.

3) Schedule a boot time scanning with avast. Start avast! > Right click the skin > Schedule a boot-time scanning. Select for scanning archives. Boot. Other option is scanning in SafeMode (repeatedly press F8 while booting).

4) It will be good if you download, install, update and run other trojan remover tools: a-squared, Free AVG Antispyware or  SUPERantispyware (trojan removers). Some users recommend Spyware Terminator.

5) Use the immunization of Windows Advanced Care features of spyware/adware cleaning and removal.

Hope it helps. Welcome to forums.