To install SQL 2005, go through the following steps.
Select Install->Server Components:
You may get this message here. This install is on a Windows 2008 R2 server. Select Run Program. We will install service packs later.
Confirm your registration keys and select Next:
Select the components you want to install:
Select Advanced and ensure Client Components is checked for Management Tools:
Select the instance:
Select the accounts each service will run under:
Select the authentication mode:
Select the collation settings:
Select the report server installation:
Select the error settings:
Confirm the components to install and click Install:
SQL Server will install:
Once complete, click Next:
Download the latest SQL Server 2005 service pack, located at: http://www.catalog.update.microsoft.com/search.aspx?q=kb2463332
We will now install the service pack.
You may see this message:
Find these in Windows Services and stop the processes:
Click Refresh to confirm no running processes:
Once finished, click Next:
Under Services, start SQL Server. You can now use SQL Server 2005.