Find hundreds of these in my system log. Any idea what they measn and how do I fix this/ Log Name: System Source: Disk Date: 5/8/2013 9:27:41 AM Event ID: 11 Task Category: None Level: Error Keywords: Classic User: N/A Computer: Description: The driver detected a controller error on \Device\Harddisk0\DR0. Event Xml: <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"> <System> <Provider Name="Disk" /> <EventID Qualifiers="49156">11</EventID> <Level>2</Level> <Task>0</Task> <Keywords>0x80000000000000</Keywords> <TimeCreated SystemTime="2013-05-08T15:27:41.611080700Z" /> <EventRecordID>28750566</EventRecordID> <Channel>System</Channel> <Computer></Computer> <Security /> </System> <EventData> <Data>\Device\Harddisk0\DR0</Data> <Binary>0404680001000000000000000B0004C00301000000000000000000000000000000000000000000001213050000000000FFFFFFFF07000000400000000000000000200A1280032040001000003C0000000030000098CF3C8500000000F8CD3C8570055785F8E89F122A00129FE8F800000800000000000000000000000000000000000000000000000000000000000000</Binary> </EventData> </Event>

Either your disk controller is faulty or your disk is on the way out. I would do this: Back up all data.Check on some other machine if the data can be read.Perform a full check disk (chkdsk /r).

Thank you for your reply! I suspected that may be the issue. Will do as you suggested. Running a complete system diagnostic right now. will do a back up and dskchk after that. Thanks again!