Avast not installing

Hi, I have bought Avast business protection, I am having problems in installing this:

During installation the prerequisite software i.e SQL server 2008, .Net framework which Avast itself download and install. while SQP server installation it says that it can’t write registry fro SQL sever. At the end installation failure due to SQL not installed. Even I separately download and install the SQL but same problem.

So how do I install the Avast on server.

Please help me out.

Hi,
try to install SQL 2008 Express separately and try to create manually an istance named SERVER\AVASTSBC
Probably the information in this article can help you
https://support.avast.com/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=1002&nav=0,1,23,654

Hi Thanx, I act upon ur suggestion but same problem while installing SQL. i m attaching the error snap please see it and suggest me more…
And creating there is sudden installation begin when I click SQL setup command and it won’t allow me to create a new instance as u told me SERVER\AVASTSBC.

Hi,
Try to see this article if can help you:
http://social.msdn.microsoft.com/Forums/en-US/sqlsetupandupgrade/thread/4ad9c63a-0012-4882-8eb2-c436628b151a

or google for it.
If you click on near “Consistency validation for SQL Server registry keys” on “failed” what do you see?