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Under Performance by File System, verify it says '32-bit'. If you are using Windows 98 or Windows 95, verify the computer is running in 32-bit mode by clicking Start, Settings, Control Panel, double-click System, and click the Performance tab. Additional information on bootable disks is on our boot disk page. However, if the CD-ROM does not work, refer to the next and final possibility. If the CD-ROM does work from MS-DOS, this indicates there is a Windows corruption issue.
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If you attempted the recommendations above, try booting from a Windows 98 diskette or another bootable diskette with CD-ROM drivers to see if the CD-ROM works from MS-DOS. If the computer can boot from the disc, you are encountering a Windows driver related issue. If you attempted the recommendations above, boot from the Windows disc to see if the computer can detect and boot from the disc. Try booting a CD or bootable diskette Windows 2000, XP, Vista, 7, and later users It's also possible that the drive is bad and needs to be replaced. If the CD-ROM drive is not in the Device Manager, the drive's cables may not be connected properly. Reboot the computer to reinstall the CD-ROM drive. If listed with a yellow exclamation mark or red X, remove the CD-ROM by highlighting the drive and pressing the delete key.
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Within Device Manager, verify the CD-ROM has no exclamation marks or red X's. In Windows Vista and later, click the Device Manager link on the left side of the System window.
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