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Hard Disk Errors Caused by Damaged Data or Physical Damage

This article was previously published under Q150532
If this article does not describe your hardware-related issue, please see the following Microsoft Web site to view more articles about hardware:
You may receive one of the following error messages when you are startingor using your computer:
  • Serious Disk Error Writing Drive <X>
  • Data Error Reading Drive <X>
  • Error Reading Drive <X>
  • I/O Error
  • Seek Error - Sector not found
These error messages indicate either damaged data or physical damage onthe hard disk.
To test the hard disk, run ScanDisk. To run ScanDisk from within Windows,follow these steps:
  1. Click Start, point to Programs, point to Accessories, point to System Tools, and then click ScanDisk.
  2. Click the drive you want to examine for errors.
  3. Click Thorough, and then click Start.
Running ScanDisk with the Thorough option selected examines the hard diskfor physical damage. If damaged data is detected, ScanDisk gives you theoption to save the damaged data to a file or to discard the data. TheScanDisk surface scan may take a considerable amount of time on large hard disks.

To run ScanDisk from a command prompt outside of Windows, follow these steps:
  1. Click the Start button, click Shut Down, click Restart The Computer In MS-DOS Mode, and then click Yes.
  2. Type the following command at the command prompt, and then press ENTER

    scandisk <x>:

    where <x> is the letter of the hard disk you want to check.
  3. When ScanDisk finishes its initial check, it prompts you to perform a surface scan on the drive. Click Yes or press ENTER.
If ScanDisk is unable to repair damaged data, or indicates that the harddisk has physical damage, you may need to have the hard disk checked by aqualified service professional.
HWDDRV corrupt

Article ID: 150532 - Last Review: 01/19/2007 17:46:49 - Revision: 2.1

  • Microsoft Windows Millennium Edition
  • Microsoft Windows 98 Second Edition
  • Microsoft Windows 98 Standard Edition
  • Microsoft Windows 95
  • kbfaq kbhardware kbprb kbscandisk KB150532