a virus blocked the avast web site in my machine what could i do ?

i have delete a vbs virus from my machine and wen i tray to instal a new avast version i have dicouver that i m not able to open avast web site or other antivirus web sites so i download it form 01.net and instaled but the problem is that i m no able to activate it or to download updates what should i do

virus deleted form c:\windows\system32\windowsdb.dll
c:\windows\system32\windowsdb.exe
coumputer clean 100%

are you sure your computer is clean ?

Have you tried scanning with Malwarebytes ?

Malwarebytes Anti-Malware 1.46 http://filehippo.com/download_malwarebytes_anti_malware/
always run update before you scan so you have the latest database
click the remove selected button to quarantine anything found
you may post the scan log here

the virus infection is over because wen i delete the autorun it from my hard disc it doesn’t come back
i have already download and install malwerebyte every think return to normal except the avast web site

Follow this guide from Essexboy and post the log`s
http://forum.avast.com/index.php?topic=53253.0

To avoid using multiple post with copy and paste you have to attach the log`s
Lower left corner: Additional Options > Attach ( OTL.Txt and Extras.Txt. and MBAM scan log )