Windows Disaster Recovery

 NT/2K Emergency Repair Disk (nsg)  XP Automated System Recover (pg)  Or:  Reinstall and restore from backup.

Automated System Recovery  Restores system partition to its state when the backup was made  Changes made since last backup are lost  Periodically make fresh copies of ASR disk set

ASR Process

ASR Process

continued… Windows XP Error Messages

Troubleshooting the Windows NT/2K/XP Boot Process  To recover from a failed boot: If Windows startup menu appears, use Last Known Good configurationIf Windows startup menu appears, use Last Known Good configuration If unable to boot from hard drive, use three boot disks that came with OS and select the option to repair a damaged installationIf unable to boot from hard drive, use three boot disks that came with OS and select the option to repair a damaged installation Try reinstalling Windows NT into same folder it currently uses; tell Setup it is an upgradeTry reinstalling Windows NT into same folder it currently uses; tell Setup it is an upgrade Move hard drive to another system and install as secondary drive (last resort if using NTFS)Move hard drive to another system and install as secondary drive (last resort if using NTFS)

Last Known Configuration  A copy of hardware configuration from the registry that is saved by the OS each time it boots and the first logon is made with no errors  Contained in the registry key: HKEY_LOCAL_MACHINE\HARDWARE  Reverting to it causes loss of any changes made to hardware configuration since Last Known Good was saved

Disks Important in Recovering from a Failed Windows NT/2K/Boot Boot  Three boot disks  An Emergency Repair Disk (ERD) or ASR to recover critical system files on the hard drive

Creating Windows NT Boot Disks

Windows NT ERD  Contains information unique to the OS and hard drive  Can be created during installation  Enables restoration of Windows registry on the hard drive, which contains all configuration information for Windows  Also includes information used to build a command window to run DOS-like commands

Windows NT ERD

Use Boot Disks and ERD to Recover from a Failed Boot