After installing the prerequisites for Sharepoint2010 and running the Configuration Wizard an error occured in Step 5 registering the Sharepoint Server Search services.

Deleting the following two registry keys will enable the Configuration Wizard to finish.

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Shared Tools\Web Server Extensions\14.0\WSS\Services\Microsoft.Office.Server.Search.Administration.SearchWebServiceManagerService]

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Shared Tools\Web Server Extensions\14.0\WSS\ServiceProxies\Microsoft.Office.Server.Search.Administration.SearchWebServiceManagerServiceProxy]