The following is for the machine that is not working properly:
1. Have you tried resetting your firewall settings?
2. Please check to see if you have the Microsoft Visual C++ 2008 Redistributable Package installed on your machine, look in Add/Remove Programs to see if you have
Microsoft Visual C++ 2008 Redistributable Package listed. If not, download the file (see below) and
restart your machine.
When folks are having troubles with Avast installs and similar it could also be a dependency problem. Make sure you have Microsoft Visual C++ 2008 Redistributable Package installed and updated BEFORE you attempt to install Avast. Actually this is good general advice anyway, for maximum compatibility and in order to avoid problems with applications written in Visual C++ it is always a good idea to have all the C++ redistributables installed and fully updated. Many programs require them to function properly; one important example is ATI drivers. It is often seen when the installs went bad or were unable to install the drivers because of either missing or not updated C++ Redistributable Package.
Microsoft Visual C++ 2005 Service Pack 1 Redistributable Package ATL Security Update
http://www.microsoft.com/downloads/en/details.aspx?FamilyID=766a6af7-ec73-40ff-b072-9112bab119c2Microsoft Visual C++ 2008 Service Pack 1 Redistributable Package ATL Security Update
http://www.microsoft.com/downloads/en/details.aspx?familyid=2051a0c1-c9b5-4b0a-a8f5-770a549fd78c&displaylang=enMicrosoft Visual C++ 2010 Redistributable Package (x86)
http://www.microsoft.com/downloads/en/details.aspx?FamilyID=a7b7a05e-6de6-4d3a-a423-37bf0912db84Microsoft Visual C++ 2010 Redistributable Package (x64)
http://www.microsoft.com/downloads/en/details.aspx?FamilyID=bd512d9e-43c8-4655-81bf-9350143d5867If the above fails, the next step is submitting a memory dump file is needed for Avast to analyze what is going on. This would be
only for the machine that is NOT working (I understand your laptop is now working fine). Remember to
rename your file that you submit uniquely.
Here is additional information on how to invoke a memory dump file:
http://support.avast.com/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=71. Avast will analyze the information and report back to you in this thread or by email. They do not work over the weekend, so there will be a delay. I thank you very much as you have been very patient.
Please go back to the FIRST post and edit/modify the title of the it from "Pro 5" to AIS. Thank you.
Please let us know in the meantime if we can help you in anyway, and we will continue to provide you with support and help you. Thank you.