I Just installed SharePoint on my machine now and I got two consecutive errors the first one was Could not load file or assembly ‘Microsoft.IdentityModel An exception of type System.IO.FileNotFoundException was thrown. Additional exception information: Could not load file or assembly ‘Microsoft.IdentityModel, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35′ or one of its dependencies. The system cannot find the file specified. and the fix was to install this package Windows6.1-KB974405-x64.msu From the URL http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=17331 and the second problem was Failed to call GetTypes on assembly Microsoft.Office.Server.Search ...