Hi,

I have built a site using dotnetnuke and was working fine with some problem i had to reinstall my sql server and know i can have to use the windows authentication for the same site, i have attached the required database to the new sql server with windows authentication and changed in the web.config connection string as

<add name="SiteSqlServer" connectionString="Data Source=WKSSHAMA\SQLEXPRESS2008R2;Database=PreSales;Integrated Security=True" providerName="System.Data.SqlClient" />

but the site is not working it goes to installation wizard, can some one help 

Thanks