Appeal No. 2000-1260 Application 08/518,852 underway should continue in spite of the failure to properly initialize the device driver, or whether a new system boot procedure should be initiated using the LastKnownGood control set (210) of the registry (107). See Appellants’ specification page 10 lines 5-12. The LastKnownGood control set (210) contains a data value that identifies a control set containing the data values that last successfully booted the computer. See Appellants’ specification page 8 lines 31-34. In response to a successful boot from the Default control set (209), the UpdateRegistry program (123) makes a new LastKnownGood control set (210) that is equivalent to the Default control set (209) which successfully booted the computer (105). See Appellants’ specification page 10 lines 19-23. In this way, it is ensured that the computer (105) will successfully boot even after some configuration data in the Default control set (209) has become unusable. See Appellants’ specification page 10 lines 30-33. Independent claims 23 and 26 present in the application are reproduced as follows: 23. A method for configuring a computer system, the computer system having a plurality of devices and having a multiplicity of device drivers, each device driver for communicating with a device, the method comprising the computer- implemented steps of: 3Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 NextLast modified: November 3, 2007