Opening SharePoint 2010 Foundation Site in SharePoint Designer 2010

Hello I am trying to open a SharePoint 2010 Foundation Site (local installed on Windows7 Home Premium) in SharePoi开发者_开发知识库nt Designer 2010. Nevertheless I get the following error:

"The directory name is invalid".

I already added the site to trusted zone in IE, but that has no effect. I also can't connect SharePoint to SharePoint Workspace.

Thank you!

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First, are you using SharePoint Designer 2007 or 2010? You can't use SPD 2007 with SharePoint 2010.

Second, you have to configure your site (via central admin) to allow editing with SPD.