Problems with Avast-6
After the installation of Avast the Internet explorer (8 & 9) may crash. To solve this problem open Internet Explorer in “No-Add-on” Mode then disable the Avast Add-on by right clicking on the Add-on.
To open the IE in No-Add-on-mode Press the Windows Key on the Keyboard and “R” key. Copy and Paste the following Command.
C:\Program Files\Internet Explorer\iexplore.exe -extoff