I'm intermittently getting this error when performing a search in my SharePoint 2010 environment:
SearchServiceApplication::Execute--Exception: System.Runtime.InteropServices.COMException (0x800703FA): Illegal operation attempted on a registry key that has been marked for deletion. (Exception from HRESULT: 0x800703FA) at System.Runtime.InteropServices.Marshal.ThrowExceptionForHRInternal(Int32 errorCode, IntPtr errorInfo) at Microsoft.Office.Server.Search.Query.KeywordQueryInternal.Execute() at Microsoft.Office.Server.Search.Query.QueryInternal.Execute(QueryProperties properties) at Microsoft.Office.Server.Search.Administration.SearchServiceApplication.Execute(QueryProperties properties)
I'm running an application server and 2 front end web servers in the farm. All are on Windows Server 2008. I've exhausted my resources and have no idea why this is occuring.