Article ID: 282981 - View products that this article applies to.
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When you attempt to install a program from a floppy disk or a CD-ROM, you may receive the following error messages if the floppy disk is damaged, or if the CD-ROM is dirty or scratched:
Disk I/O error.
This is not a Macintosh disk: Do you want to initialize it?
This disk is damaged: Do you want to initialize it?
To test whether your installation media is damaged, use the appropriate methods for your situation.
How to Test a Floppy Disk
Method 1: Copy the Floppy Disk to the Hard Disk DriveTo copy the floppy disk, follow these steps:
Method 2: Check If the Disk Is Write-ProtectedTo determine if a disk is write-protected, follow these steps:
Method 3: Try the Disk in Another Drive or ComputerIf you can install the floppy disk without error on a different computer, your disk drive may be out of alignment. If so, Microsoft suggests that you contact an Apple Support Technician to troubleshoot the issue.
For more information about hardware and software vendor contact information, visit the following Microsoft Web site:
How to Test a CD-ROM
Method 1: Visually Inspect the CD-ROM for Dust or Fingerprint SmudgesIf the CD-ROM is dusty or has fingerprints, clean it with a mild soap and soft cloth. Or, try cleaning the shiny surface with damp toilet paper; (tissues often have lanolin or other ingredients that leave their own film). Then, dry the surface completely.
When cleaning and drying the disc, wipe straight from the center of the disc to the edge. Do not wipe around in a circle. You may have to clean the surface up to three times.
Method 2: Visually Inspect the CD-ROM for ScratchesIf a CD-ROM is scratched, the information on it may not be retrievable and you may need to purchase a replacement CD-ROM to install the program. For replacement Microsoft software, please contact the Microsoft Order Desk at (800) 360-7561.
Article ID: 282981 - Last Review: February 27, 2014 - Revision: 7.0