Symantec NORTON SYSTEMWORKS 2004 RETAIL (10109303) for PC

290 Troubleshooting

If you cannot recover startup data

13 Remove the disk from drive A and restart your computer.

If the problem has been fixed, your computer will start normally.

If you cannot recover startup data

See “To recover operating system files” on page 290.

If the problem persists, it is possible that the disk’s operating system files are missing or corrupt.

Recover operating system files

When your computer successfully completes the POST process, your computer loads the master boot record program that passes control to the disk’s boot record. The boot record then loads IO.SYS, which carries out the rest of the startup process. To start Windows, both

COMMAND.COM and MSDOS.SYS files must be present.

If they are not, your computer will not start Windows properly.

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Before you recover operating system files, make sure that you have file-level access to the drive from the command prompt.

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To recover operating system files

1 Insert the Rescue Boot Floppy Disk into drive A.

2 Turn on your computer and wait for the Rescue Disk screen to appear.

3 Press Esc to go to the DOS command prompt.

4 Insert NU Emergency Utility Disk 1, which contains the SYS.COM file, into drive A.

5 At the command prompt, type SYS C:, then press

Enter.

If the message “Insert system disk in drive A:\” appears, insert the Rescue Boot Floppy Disk into drive

A and press any key.

The SYS program copies the system files from your

Rescue Disk to your hard drive.