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Last Updated On: 08/05/2004

Windows NT Emergency Repair Disk

Although Windows® NT is a very stable operating system, occasional software corruption may prevent the operating system from loading. Software corruption may result from any of the following: software and/or hardware installation, virus infection, loss of power while the computer is running, etc. The Windows® NT Emergency Repair Disk allows you to recover from near catastrophic software failure. Using the Emergency Repair Disk, a minimal implementation of the Windows® NT registry may be restored. In many instances, an operating system reinstall is avoided. You may create and update an Emergency Repair Disk using the RDISK.EXE utility included with Windowsâ NT.

The Emergency Repair Disk provides options for inspecting the boot sector, startup environment, system files, and portions of the registry.

Note: The Emergency Repair Disk replaces the current registry files with an older backup copy. As a result, some user settings may be lost, and it may be necessary to reinstall certain programs.

Creating an Emergency Repair Disk

Windows® NT 4.0 contains a Repair Disk Utility that allows you to update your Emergency Repair Disk. To create and Emergency Repair Disk:

  1. Click on START | RUN.
  2. Type:
    RDISK.EXE [Enter] and click "OK".
  3. When the Repair Disk Utility loads, you will have these options:
    • Update Repair Info
    • Create Repair Disk
    • Exit
    • Help
  4. To create an Emergency Repair Disk click the button labeled “Create Repair Disk”.
  5. Insert your Emergency Repair Disk into the floppy drive.
  6. The Repair Disk Utility will ask you to insert a diskette into drive A:. Insert the disk and, click "OK".
  7. The Repair Disk Utility will format your diskette, and begin copying configuration files.
  8. When the message "Windows NT repair information contains security sensitive data..." is displayed, click "OK".
  9. Exit the Repair Disk Utility by clicking on the "Exit" button.

Note: Not all software settings are restored by the Emergency Repair Disk. After restoring the Windows® NT registry some software settings may be lost.