From the command prompt run: SharePointServer.exe /extract:c:\sp2010\
This will extract the installation files.
Second, you need to 'enable' a Windows 7 installation. In order to do this, you will need to edit one of the configuration files. Navigate to C:\sw\sp2010\Files\Setup and add the following line to the bottom on the config.xml (before the closing Configuration tag).
<Setting Id="AllowWindowsClientInstall" Value="True"/>
You should be good to go IF YOU HAVE SQL SERVER 2008 R2. If you are running SQL Server 2012, you will need SharePoint Server 2010 SP1.